Mod 3A slip test 1

The nucleus of an atom always contains:

• protons

• electrons

• protons and neutrons

A stable atom must have the same amount of:

• protons and neutrons

• neutrons and electrons

• protons and electrons

When an atom loses an electron it is called a:

• positive ion

• negative ion

• good conductor

For a material to have good conductive properties it should have:

• few electrons in its' outer shell

• many electrons in its' outer shell

• an indeterminate number of electrons in its' outer shell

In its' outer shell; a good insulator has:

• 2 or less electrons

• 4 electrons

• 6 or more electrons

The outer shell of a semiconductor is known as the:

• insulation band

• valency band

• conductivity band

The Atomic Number of an atom is determined by:

• the number of neutrons

• the number of electrons

• the number of protons

The Atomic Mass of an atom is determined by:

• the number of neutrons and electrons

• the number of electrons and protons

• the number of protons and neutrons

What is the maximum number of electrons in shell M of an atom?

• 2

• 8

• 18

If shell P is the valence shell of an atom; what is the maximum number of protons it can carry?

• 0

• 8

• 72