Periodic Table Trends & Atom Behavior

Question 0

When is an atom considered stable?

Answer 0

When it’s outermost energy level is full

Question 1

What are electrons in the outermost energy levels of the atom called?

Answer 1

Valence electrons

Question 2

How many atoms must an atom have in it’s outer she’ll to be stable?

Answer 2

8 (or 2 if there is only one shell)

Question 3

What is the rule of having 8 electrons in the outer shell called?

Answer 3

The octet rule

Question 4

What is electro-negativity?

Answer 4

The ability of an atom to attract electrons

Question 5

What happens to the number of shells as you move across the table?

Answer 5

Stays the same

Question 6

What happens to the number of protons as you move across the table? This causes a ______ pull on electrons and the atom gets ______

Answer 6

Increases
Stronger
Smaller

Question 7

What happens to the number of valence electrons as you move across the table? This causes the atom to be more needy for ______. Also the nucleus is _______ and there is a ______ pull for electrons.

Answer 7

It gets closer to 8
Electrons
Bigger
Stronger

Question 8

What happens to the number of valence electrons as you move across the periodic table?
Atom will want to _____ all of the valence electrons it has and it will take ______ energy to remove them.
The nucleus is _____ so the atom will hold onto it’s valence electrons ________

Answer 8

Gets closer to 8
Keep
More
Bigger
Tighter

Question 9

What happens to ionization energy when you move across the table?
This makes it ______ to remove a valence electron. The nucleus has more ____ so the atom will hold on to its electrons _______.

Answer 9

Increases
Harder
Pull
Tighter

Question 10

What happens to the number of shells as you move down the table?
The valence electrons are _____ from the nucleus. The atom is ______. The pull of the nucleus is _____. It does not take as much ______ to pull a _____ electron off.

Answer 10

Increases
Further
Bigger 
Less
Energy
Valence