Periodic Trends Practice

Front

As you move down a group, atomic radius increases because:

• you add more and more neutrons
• you add more and more protons
• you add more and more shells (energy levels)
• you add more atomic mass

Back

you add more and more shells (energy levels)

Front

The atom with the largest atomic radius in Group 18 is: Ar, He, Kr, Rn

Back

Rn

Front

As you move across the periodic table from left to right, the atomic radius decreases. Why?

Back

the number of protons increases, so attraction to electrons increases

Front

Atom with the largest atomic radius in Period 4 (row 4).

Back

K

Front

Electronegativity is...

Back

the ability of an atom to attract/ accept electrons

Front

Electronegativity __________ from left to right across a period and __________ from top to bottom down a group.

Back

increases, decreases

Front

Which of the following will have a larger atomic radius than zinc? Gallium, Aluminum, Magnesium, Strontium

Back

Strontium

Front

Which element has a higher electronegativity than arsenic (As)? Options: Carbon (C), Neon (Ne), Antimony (Sb), Germanium (Ge)

Back

Carbon (C)

Front

Ionization energy

Back

how much energy it takes to remove an electron from an atom

Front

Why does Francium (Fr) have the lowest ionization energy in Group 1?

Back

Its 1 valence electron is very far from the nucleus, so little energy is needed to remove it.