Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Atomic structure

Chapter 2

QuestionAnswer
atomic number the number of protons in the nucleus of an atom of an element
orbital a region in space around the nucleus where there is a high probability of finding an electron
relative atomic mass average mass of an atom of an element compared to 1/12 mass of the carbon isotope
atom smallest particle of an element that takes place in a chemical reaction
electron subatomic particle that revolves around the nucleus and has a negative charge
who named electrons stoney
proton atomic particle in the nucleus that has a positive charge
Daltons atomic theory 1. atoms are indivisible 2. all matter is made up of small particles called atoms
who did the plum pudding model of an atom to find electrons are negative JJ Thomson
who used vacuum tubes and cathode rays william crookes
who discovered the neutron chadwick
discovered protons through gold foil experiment rutherford
who proposed a planetary structure of orbitals Niel Bohr
who found the nucleus of an atom rutherford
atomic mass number of protons and neutrons
isotopes same number of protons in a element but different number or neutrons
how many protons + the mass number in: Mn2+ : 28 electrons 34 neutrons 30 protons + mass number: 64
how many electrons + neutrons in: 27/13 Al3+ 10 electrons 14 neutrons
Created by: Kamilex
Popular Chemistry sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards