Nuclide Symbols: Atomic Number, Mass Number, Ions, and Isotopes
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- čas přidán 25. 06. 2015
- How do we represent an atom, with all of its protons, neutrons, and electrons? With nuclide symbols, of course! These show the type of element, as well as the atomic number, mass number, and electrical charge of an atom. That's all you need to know!
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My teacher could never explain this as clearly as you. Thanks Dave
me to
Same
Likewise... I'm a dropout. Lol
I’m binge watching the entire series because I have a final test tomorrow. Thanks for such great review
Same!!
I'm binge watching for fun! I haven't had a chemistry test in decades.
Thanks for such great review
Did you pass lol. I have one tomorrow and have no idea what’s going on
@@aliciacohen5279 How'd you do
Impressive you explain better than my chemistry teacher!!
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ME TOO
facts
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@@wellox8856 same
I'm a chemistry teacher. Your use of graphics and your clear explanations are magical. Thank you!
Same here 😂
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ME: I pull out my phone, swipe to youtube and show her Professor Dave :)
Knowledge is free on CZcams lol
Nhật Tuấn that's good, isn't it? 😊
It amazes me that out of pure snobbery a lot of so-called "real educators" in the academy still snobbishly snub their noses at CZcams when CZcams actually often does a far better job educating people than they do. These chemistry videos are more informative and clear than A LOT of professors who drone on confusingly with their chicken scratch handwriting and a marker doodle or two. The clear graphics alone make it easier to follow, not to mention it's explained well. Many teachers are glorified educational CZcamsrs, but with smaller audiences. It's like the professors are scribes at the dawn of the printing press, bitching about how vulgar it is that the words are stamped on the page rather than handwritten.
@@thegoodlydragon7452 youtube is amazing but because it's free, there are institutions out there that will doubt it's credibility so they can still charge for their programs, even though their curriculum may be no better than what is on here
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and in a single evening you’ve summed up my semester of chemistry except now i can actually understand it. life is magical
My first chemistry prof, thank you so much!
Bless CZcams educators. Poor kids would be lost without them
It's shockingly short and very well explained. Thanks Professer Dave
Very concise summary of periodic table basics!
Thank you so much! This really helped me better understand the charges with electrons/protons on the nuclide
Thank you so much for this, my comprehensive test is a day after right now. I’m studying for 12 hours and this helped me so much. Thank you
Blew my mind at first but after giving some time to this video , it proved to be very effective and useful.
Thank you very much.
most powerful thing of your teaching style is let's check comprehension. comprehension makes concept as strong, thank you professor
Been watching all these videos and taking notes on your biology and chemistry vids ! i really enjoy expanding my knowledge and ive been absolutely fascinated with the origin of life. Hoping learning all this will help me understand more !!!
thx i usally don't comment on Videos but this helped me for my test so thx
litterally subscribed fr
Thanks for the explanation, it really helped. :)
Such a clear and fascinating explanation
Thank You prof
I'm taking Prep General Chemistry this summer in a 4/5 week college class so in Fall I can take General Chem. I haven't done chemistry or math since HS and I was so scared but these videos are helping a ton! I actually didn't learn how to calculate all these things because we didn't have a chem teacher until like MARCH so we had to scrunch everything and really only learned about the periodic table and different types of mixtures.
This was very helpful, thank you!
You explained this really well, thanks, I still need some help so I will try to watch some of your other videos
The part that boggles me is: i.e., if 75 is the percent abundance of Cl 35, what is the point of 75 of 35. Wouldn't that be a percent of an individual atom? The math expression just seems so redundant to me. In my head (and I know this is not correct. The issue is I know how to do it correctly, but can't seem to computer the why), 75 percent should be multiplied by the total of a sample to predict how much of that samples mass belongs to Cl 35. Yet this is so obviously not what's going on.
Thanks for helping me, Chemistry was hard at school. Goddd!
Im doing hw at 11pm, and this helped a lot thank you for the spare knowledge kind sir.
thanks for explaining so effectively
Awesome video. Thanks for sharing!
You are a life saver professor for me. I've been struggling with this throughout my academic journey but didn't find the right answer. 🙏🙏🙏
Professor you are just fab . Only you are the one who is able to clear all the concepts
Did u understand how his lesson was supposed to help with his "checking comprehension" thing at the end? Because I don't. I'm confused.
Nice Dave I can do my test now respect
I nearly understood right up till the comprehension test...went over and over it but I guess I got a lot to learn lol
I KNEW I wasn’t the only one struggling specifically on this. Thank you M. Dave.
Thank you for the explanation and post. 🖒
thanks
In the comprehension table, why do we put 4+ for tin but don’t put a x+/- for any other ions?
Thanks this really helps!
Best tutorial ever ❤
I'm in year 8 and I want to study more complex things than what I am taking now, this was really helpful thanks.
Aeventus this is me 7 years ago lols, I can relate
Goodluck with your GCE'S or u must be in college or sixth form
@@Lynn_l 11th grade😂😂
@@curlyhead20 you are legend man me from hs
We both are same. I am also in 8th. I am a version of you, but 6 years late.
Am i the only one looking up individual videos just to make sense of this video? This is a whole lot to grasp all at once.
I thought I understood this video until he gets to "check comprehension" and I'm like "how the hell am I supposed to figure that out?
@@justinpettit3432 same! :-(
I loved the Intro BTW the video was appreciatable.
He's literally better than all the teachers that I have and his education is free!!!!
Hi, can you explain in each video how you got to your answers! Please. That would greatly help. Thank you for your videos.
your the best. I am starting to hate chemistry but you made it simple. thank you
I keep gawping at the quality of this channel :)
Actually an incredible video and I appreciate him not dragging it out. Wish he mentioned cation and anion but its a quick google from me lol
Wow. Thank you !
I love you, Prof. Dave!
Thanks:)
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I just don't understand how to fill in the comprehension table😭
Use the periodic table!
can someone explain me the result of 112 Sn +4 how did you come up with the answer
thank you professor dave
thanks Dave
This makes me see why I never remembered much in science. So much terminology to remember. I keep rewinding it to wrap my head around it all because when I'm watching it I go into the Dr who vortex after a few terms are used together haha
Facts. I remember in my school days how I would look in the glossary of the science book to understand what the word meant and the definition was 30 other words that I didn't know what they meant. So I'd look up those and they had words I didn't know in their definitions too. Lol. So I'd do all that work and still have no idea what the words meant.
@Justin Pettit That's because they cannot explain these concepts well.
Great outline
Can you please explain how you got the answers for Sn??
Very nice and useful video
Thank you
This is great!
This is soooo cooool... That i ever had in ma chemistry knowledge
4:22 I think you missed the 1+ at the top right of kalium(K) in the 4th row. The same goes for the 3+ on the iron(Fe) in the 5th row and the 1- on the chlorine(Cl) in the 6th row. It is a bit confusing, because on the tin(Sn) in the 3rd row you wrote 4+.
Love it! Tyyyy
Thanks a lot. I am a visual learner. I really want to learn chemistry but textbooks are a bit complicated for me. It is also because I am not a native English speaker or learner. I do not need to spend one-hour reading textbook to understand. Your videos explain the simplest way to understand chemistry in such a short time. Thanks a lot Prof Dave.
thanks for watching!
Do you understand his "checking comprehension" part? Because I don't get how I'm supposed to figure that out with the given information of this video. Nothing in the video explains how to figure out those things.
@@justinpettit3432 The video explained everything in the check comprehension. The only thing that you would need is a simple periodic table to find each element and its atomic number.
Makes my test easier🙂
Than you so much professor 🌹
This is the best explanation i ever had. However, i got a little confused with the placement of atomic number & mass when i did the comprehension check. Lol! for example uranium, since 238 was placed on upper left of nucleid symbol, then i thought it was the atomic number. anyway, i already figured it out afterwards, as long as i understood how to do it. Thank you so much Prof. Dave.
thank you so much!
Excellent video! I dare you to go to the LHC and say "there aren't any fractions of a neutron after all." haha
THANK YOU!!
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The true saviour of chemistry
Thanks 🙏
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In your review question, I get how you got all of the answers except the Mass for Sn, I have looked at several periodic tables and they say that Sn mass number =118 not 112 as you put into the answer table....I am missing something , can you explain how you arrived at mass number of 112, please.
so the atomic masses on the periodic table are average atomic masses, every element has atoms of different mass, these are called isotopes. so like carbon's atomic mass is a little over 12 because it's the average of all the 12-C, 13-C, and 14-C that there are. watch this one more time!
thanks...you are the best
Thanks sir.
So is 'Nuclide' an umbrella term for isotopes, ions and elemental nucleus?
pretty much!
I don't understand the Carbon part on the chart at the end of the video
Very good lesson Prefessor Dave! [You haven't put the charges on Potassium, Iron and Clorine in the final table just for the sake of perfection.]
Love you😊your Chanelle is helpful ♥
How can we calculate anything other than charge and mass number in case of Sn??
On the comprehension table how come the K, Fe, Cl aren't showing their charge for their nuclide symbol? But Sn is?
Yeah, it's an error that he made. The Prof admits, that he wasn't quite careful and thorough back then as he's now.
Very helpful video. Thank you Professor Dave
So to find electrons you do the opposite of the sign in front of the charge to the proton
The net charge of the protons and electrons needs to add up to the net charge of the ion. Protons add charge, electrons subtract charge. Protons identify the element, while electron count is flexible. There generally tend to be certain ions that are more likely to form than others.
Thank u sir
how do you find the pen number ,hyphen notation ,nuclear symbol and pen with different eleme
i'm not sure i understand the question
THAAAAAAANK YOOOOOU
I learn something new I always wondered about why the atomic mass wasn't a whole number I never took a high school chemistry class so yeah. So far I've known most of this because I love science so I have been learning it over the years regardless. Figured I should probably take a look at an actual chemistry course type thing so I can have a bit better understanding in a more coherent way. One upside to being homeless is I have a lot of time on my hands so learning and refreshing one of my favorite subjects being science as a whole sounds good. But I'm sure as we go deeper I will start running into more that I don't know I've been teaching myself most of the basics but there's only so much you can do by self learning. And Dave makes amazing content so it works out
Just wondering: how do you connect to the internet while homeless?
Great sir
how can we find the protons, neutrons, and electrons starting with the atomic symbol?
it's all in this clip, friend! the name of the element implies the number of protons (the atomic number), and the mass number is protons + neutrons, so mass number minus atomic number gives you the number of neutrons. if it's a neutral atom, the number of electrons equals the number of protons, if it's an ion you adjust accordingly.
I guess Cl 35 - K 19 and Fe26 need charge signs ( in the comprehension check table )
Thank you dave!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Fast + No BS = I LEARNED SOMETHING!
Should we not have written ‘1+’ for the nuclide symbol at the top left?
Thanks 👍🙏
would please answer me on this one,whem writing Cl- does that mean Cl have 7 valence electron and it's going to have another or it already has the 8th electron?
the minus charge means one more electron than its valence, so the chloride ion has eight valence electrons, a full octet.
do you have a video on chemical reactivity series? Also I want to know about orbital and s,p,d,f shells . PLEASE HELP BY REPLYING Prof.
check out my clip on quantum numbers for the shells!
hi,do you have same table for all elements?
the periodic table! everyone uses the same one.
I wish i watched this series when taking my honors chemistry course in my sophomore year
hi Dave, there is something confuse my mind. in question 35 CI number of electrons 18. But I see -1 charge. why we dont add 1. The reason is what ?
We do, Cl has an atomic number of 17.
Wow beautifully explained. Thank you!
Is the word radical a proper synonyms for ion?
nope! those are completely different species. i have tutorials on radicals in my organic chemistry series.