Grade 9 Unit B Section 1 and 2 Review

Horizontal rows on the periodic table are referred to as:

• Periods

• Famillies

• Groups

• Noble Gases

Check all the possible answers that describe physical properties.

• Malleability

• Ductility

• Bubbles in presence of oxygen

• Boiling point of 120 degrees

• Must be kept out of direct sunlight.

This philosopher/ scientist described the tiniest possible pieces of all matter as "atomos".

• Democritus

• Robert Boyle

• Antoine Laurent Lavoisier

• J.J. Thompson

• Ernest Rutherford

This philosopher/ scientist developed the "raisin bun" model, where a large, positively charged sphere was sprinkled with negatively charged electrons.

• John Dalton

• J.J. Thompson

• Antoine Laurent Lavoisier

• Ernest Rutherford

• Neils Bohr

The individual whose atomic theory most closely resembles current atomic theory is:

• Ernest Rutherford

• Antoine Laurent Lavoisier

• Neils Bohr

• Atomic Cloud Theory

The amount of protons in an atom of carbon is:

Select all options which are correct when referring to an atom of neon.

• Is missing an ionic charge.

• Is a noble gas

• Has 10 each of neutrons, protons, and electrons

• Has an atomic mass of 10

• Is solid at room temperature

What are the three main categories of elements on the periodic table?

• groups

• metal

• nonmetals

• metalloids

• periods

What is the name of the element? (Periodic table will be needed)

What group and period does this element belong in?

• period 1 and group 3

• period 3 and group 1

• period 2 and group 3

• period 3 and group 2