8.5

These elements are in a:

• group

• period

What subatomic particle identify an element ?

• electrons

• protons

• neutrons

• ions

Where valence electrons are located ?

• inner shell

• outermost shell

• in all the shell

• nucleus

Name this element.

• Argon

• Chlorine

• Aluminum

• Boron

Tags

NGSS.MS-PS1-1

What is this element?

• Beryllium (atomic #4)

• Boron (atomic #5)

• Carbon (atomic #6)

• Nitrogen (atomic #7)

Tags

NGSS.MS-PS1-1

Which type of elements are semiconductors?

• Metals

• Metalloids

• Nonmetals

• Gases

A scientist observes an element that is dull, brittle, and does not conduct electricity. This element is a _________.

• nonmetal

• metal

• metalloid

• lanthanide

SIDE TO SIDE rows on the periodic table are

• groups

• periods

Atoms are composed of mostly _____________ space.

• Positive

• Neutral

• Negative

• Empty

Tags

NGSS.MS-PS1-1

Most of an atom's mass can be found at location X in the diagram. What is the charge of the sub atomic particles outside of location X?

• Neutral

• Negative

• Positive

• Cannot be determined

Tags

NGSS.MS-PS1-1