Save
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

Chapter 5

QuestionAnswer
mendeleev noticed that properties of elements usually repeated at regular intervals when the elements were arranged in order of increasing atomic masses
what are the radioactive elemets with atomic numbers from 90 to 103 in the periodic table called the actinide elements
what are the elements with atomic number 58 to 71 in the periodic table called the lanthanide elements
one half the distance between the nuclei of identical atoms that are bonded together is called the atomic radius
the principle that states that the physical and chemical properties of the elements are periodic functions of their atomic number is the periodic law
the person whose work led to a periodic table based on increasing atomic number was moseley
the most reactive group of the nonmetlas are the halogens
a positive ion is known as cation
a negative ion is known as anion
which is the reason that the atomic radius generaly increases with atomic numkber increases the atomic radius the number of energy levels increase
Created by: Frankie17
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