Chapter 6 Review Questions

__________ arranged the elements on the periodic table according to increasing atomic mass.

• Dmitri Mendeleev

• Henry Moseley

Henry Moseley arranged the elements on the periodic table based on increasing _____________.

• atomic mass

• atomic number

How many periods are there?

• 1

• 3

• 5

• 7

The vertical columns in the periodic table are called _________.

• groups/families

• periods

Periods are the horizontal rows on the periodic table.

• True

• False

Is aluminum a representative element?

• Yes

• No

Tags

NGSS.HS-PS1-1

Radium and magnesium are alkali metals?

• True

• False

Is silver a nonmetal?

• Yes

• No

What group are halogens?

• IIIA

• IVA

• VIIA

• group B

Krypton and argon have similar physical and chemical properties.

• True

• False