Physical Science Pre-Test

The number of protons in the nucleus of an atom; used to determine an element's position in the Periodic Table.

• subatomic particle

• electrical charge

• atomic number

• electron cloud

The positively charged center of an atom containing the protons and neutrons

• period

• electron cloud

• subatomic particle

• nucleus

The horizontal rows on the Periodic Table.

• periods

• families

• groups

• neutrons

A positively charged particle within the atomic nucleus; used to identify an element.

• element

• proton

• neutron

• electron

In the periodic table shown, what is the GREEN section (staircase)?

• Metals

• Nonmetals

• Metalloids

• Gasses

What is the ATOMIC NUMBER in this element tile?

• 28

• Ni

• Nickel

• 58.693

Tags

NGSS.MS-PS1-1

What is a valence electron?

• an electron that is found in the outermost shell of an atom. 
• an electron found in the innermost shell of an atom.
• an electron found in the middle shell.

Tags

NGSS.MS-PS1-1

Which type of bond is formed from the sharing of electrons?

• ionic bond

• covalent bond

Which set of elements is most likely to form an ionic compound?

• Na and O

• C and O

• Na and K

KBr

• Potassium Bromide

• Potassium bromine

• Bromine Potassium

• Bromide Potassium

Tags

NGSS.MS-PS1-1