Periodic Table/ Atoms Quiz Review

Moving down a family/ group the atomic radius _______.

• increases

• Decreases

• stays the same

Moving across a period the atomic radius _______.

• increases

• decreases

• stays the same

Moving across a period, the number of sticks/ rods ______.

• increases

• decreases

• stays the same

• increases then decreases

Moving down a group, the number of sticks/ rods ______.

• increases

• decreases

• stays the same

• increases then decreases

Moving down a group/ family, the elements can form ______ bonds.

• more

• less

• the same number of

An atom of Phosphorus has 15 protons, 15 electrons, and 16 neutrons. What is the mass number of this atom?

• 15

• 31

• 30

• 16

How many neutrons are in Strontium- 88?

• 38

• 88

• 50

• not enough information

If an Iodine- 126 atom has a charge of zero (neutral), how many electrons does it have?

• 126

• 0

• 73

• 53

What is the correct order of the atomic models?

• B, A, C, D, E

• C, E, B, D, A

• B, D, A, E, C

• B, D, E, A, C

What was discovered in Model D?

• protons

• neutrons

• nucleus

• electrons