Lee Muglia
9/17/2012 08:19:35 am
I likedd how this video broke down into the ions and isotopes more than what it said in the video aboutthe atomic number. This video also answered my question that I had in the other video. I am really starting to like doing these videos.
Jake Schmidt
9/17/2012 09:33:55 am
When the electrons and neutrons are changed does that make it not an atom anymore? Or is it an ion atom or isotope atom?
Megan Bishop
9/23/2012 11:33:03 pm
When the number of protons does not equal the number of electrons, the atom is considered an ion. When the number of protons in an atom does not equal the number of neutrons, it is an isotope.
Hunter B
9/23/2012 11:35:03 pm
It's a different variation of an atom
Hunter
9/23/2012 11:38:16 pm
It would become negatively or positively charged depending on which one changed and how much it changed
Allison Schweiger
9/18/2012 06:10:17 am
Can the ion have more than a positive 1 or negative 1 charge?
Rourke
9/18/2012 10:41:17 am
Yes, if the atom gains or loses more than one electron, the charge would reflect that difference. Good question, Allison.
Abbey Johnson
9/18/2012 06:26:38 am
I think this is a really good idea. It worked this time! :) It's really useful to have the lecture at your fingertips whenever you need to review, or if you need help with homework.
Rachel Kosek
9/18/2012 07:17:24 am
I'm confused about how to write out the isotope notation. (for the homework chart) Is it the mass# that is superscript on the left? and the atomic # subscript? and what is the second way to write it?
Carly Zebelian
9/18/2012 07:56:31 am
The one way is the elements chemical symbol (like O for oxygen) and then you use a - and then write the mass number (C-14). The second way is with the chemical symbol written and then on the upper left is the mass # and lower left is the atomic #
Lee Muglia
9/18/2012 11:15:04 am
I don't know aboutthe C-14. C stands for carbon and the mass of carbon is 12. It can't be the atomic number either because it is 6. I am confused on what that (C-14) means.
Laurel Payne
9/24/2012 03:28:50 am
C-14 just means it is an isotope of carbon.
Bailey Ernst
9/18/2012 08:07:49 am
I think it's great that I can rewind the lecture and hear what he says again if I did not understand the first time. Isotopes were a little bit more confusing than ions to me, but I managed to understand it better when I went back and watched again.
Laurel
9/18/2012 08:08:42 am
Can an element be an ionized isotope?
Rourke
9/18/2012 10:42:26 am
Absolutely, but for our class we are going to assume that the mass of an ion will always be the mass number listed on the periodic table.
Ben Evans
9/18/2012 08:57:04 am
What would the atom become if it changed both its neutron and electron levels?
Jake Schmidt
9/23/2012 11:35:33 pm
It would be an ion and isotope at the same time
Kayla Diederich
9/24/2012 03:20:25 am
Rourke answered one similar to this above. It would be considered an ionized isotope.
Austen Thomas
9/18/2012 09:08:34 am
how does the protons and electrons cancel out each other to make the atomic charge zero?
Rourke
9/18/2012 10:43:46 am
Imagine the protons are individual positively charged magnets and the electrons are negatively charged magnets. If I have the same number of each magnet, the charges would be equal, equal pull from positive and negative.
Sara Campbell
9/18/2012 10:25:03 am
Okay this might sound really stupid... What if an atom has 5 protons, but 4 neutrons, and 4 electrons? Is that possible? So it would be an ion and an isotope at the same time? O.o
Rourke
9/18/2012 10:44:48 am
Not stupid at all...yes it'd be an ion and isotope.
Katie Townsend
9/18/2012 10:28:53 am
What happens if there is 2 or more electrons than protons? would it be double negative?
Rourke
9/18/2012 10:45:09 am
yes, -2
Megan Bishop
9/18/2012 11:17:45 am
Is there a difference in mass between ions and isotopes or are they about the same?
zeke fetty
9/19/2012 10:09:40 am
isotopes are atoms that have lost or gained neutrons which are what make up most of the atoms weight and ions are atoms that have gained or lost electrons which dont weigh enough to be counted so isotopes would weigh more or less than an ion
Chris Smith
9/22/2012 01:28:55 am
I am still a little confused on if i am writing the notations for ions and isotopes right. If i have Zinc with 30 protons, 34 neutrons and 30 electrons, the isotope notation is 64 Zn or Zn-64.Is this correct?
Chris Smith
9/22/2012 01:30:14 am
The 30 on the bottom line is supposed to be under the 64.
Rourke
9/23/2012 12:12:13 am
Chris...you are correct. Zn-64 OR 64Zn
Krista Wylin
9/24/2012 03:22:38 am
So if the atom gains or loses an electron is it still the same element?
Laurel Payne
9/24/2012 03:26:44 am
Yes, it just has a charge. The base element does not change unless you change the protons
Riley Yaxley
9/24/2012 11:14:46 am
I think that these videos are really good when you need to reference a specific thing we talked about and don't want to dig around the internet in search of something that you could have had in five seconds with these. Leave a Reply. | ArchivesSeptember 2013 Categories |
RSS Feed