Atoms and the Periodic Table

What do elements in each column in the periodic table have in common?

• Same number of valence electrons

• Same number of electron shells

• Same color

• Same number of protons

How are elements in the periodic table organized?

• By increasing atomic mass

• By increasing atomic number

• By increasing reactivity

• By increasing weight

Where are metals located on the periodic table?

• On the right of the stairstep line

• On the stairstep line

• On the left of the stairstep line

• On the top row

Where are nonmetals located on the periodic table?

• On the stairstep line

• On the top

• On the left of the stairstep line

• On the right of the stairstep line

Where are metalloids located on the periodic table?

• On the top

• On the stairstep line

• On the right of the stairstep line

• On the left of the stairstep line

How many protons are in an atom of Calcium?

• 20

• 40

• 19

• 2

How many neutrons are in an atom of Sodium?

• 11

• 13

• 3

• 12

How many electrons are in an atom of Aluminum?

• 13

• 24

• 27

• 26

Which of the following is a characteristic of metals?

• Brittle

• Gases at room temperature

• Located on the right side of the periodic table

• High Luster

Which of the following is a characteristic of nonmetals?

• Located on the left side of the periodic table

• Usually gases or brittle solids at room temperature

• Located on the stairstep line

• Have a high luster