Topic 5 pt. 5

Which element is shown?

• Manganese

• Molybdenum

• Metal

• Magnesium

What is the atomic number?

• 12

• 16

• 20

• 24.31

A and C make up the _____ of the atom.

• Electron cloud

• Nucleus

• Electron mass

• Ions electron mass

Which has a negative charge?

• A

• B

• C

• A,B,and C

Which has a mass of about the mass of a proton or neutron?

• A

• B

• C

• A,B, and C

Which makes up almost all of the mass of an atom?

• Electron

• Electron cloud

• Nucleus

• Isotope

The property of metal that describes how shiny it called _______________.

• Luster

• Solubility

One example of a noble gas is _______________.

• Neon

• Rhodium

One example of the halogens is _______________.

• Chlorine

• Radon

Elements that have properties halfway between those of metals and nonmetals, are classified as ____________________.

• Noble metals

• Metalloids