Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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
share
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

S.Spałek

Trends in the Periodic Table

QuestionAnswer
What is the different name for atomic radius ? Covalent radius
Define atomic radius. This is Half the distance between the nuclei of two atoms of the same element that are joined together by single covalent bond.
From what reasons the values of the atomic radius increase down the groups in the Periodic Table ? 1. New energy level (shell) 2. Screening effect or inner electrons.
From what reasons the values of the atomic radius decrease across a period in the Periodic Table ? 1. Increase in effective nuclear charge. 2. No increase in the screening effect.
From what reasons the values of the first ionisation energy decrease down a group in the Periodic Table ? 1. Increasing atomic radious. 2. Screening effect or inner electrons.
From what reasons the values of the first ionisation energy increase across a period in the Periodic Table ? 1. Increase in effective nuclear charge. 2. Decreasing atomic radious.
Define second ionisation energy. This is the energy required to remove an electron from an ion with one positive charge in the gaseous state.
From what reasons the values of electronegativity increase across the periods in the Periodic Table ? 1. Increasing effective nuclear charge. 2. Decreasing atomic radious.
From what reasons the values of electronegativity decrease down the groups in the Periodic Table ? 1. Increasing atomic radious. 2. Screening effect or inner electrons.
All of the alkali metals are... ? Very reactive.
The chemical properties of elements are largely determined by...? the number of electrons in the outermost energy level.
how do we need to stored the potassium ? In the Oil.
Define bond length. This is the distance between the nuclei of two atoms, which are covalently bonded.
Define first ionization energy. This is the energy required to completely remove the most loosely bound electron from a neutral gaseous atom.
How are called Nobel gases ? Inert
Do not exist freely in nature. Halogens
Reacting with oxygen. Alkali metal + Oxygen → Metal Oxide
Reacting with water. Alkali metal + Water → Metal hydroxide + Hydrogen
Reacting with Acid. Alkali metal + Acid → Metal Chloride + Hydrogen
First ionization Na → Na^+ + e^-
Second ionization Na^+ → Na^2+ + e^-
 

 



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