Chemical Bonds Review

Why are atoms neutral?

• Because they have the same number of protons and electrons.

• Because they have the same number of neutrons and electrons.

• Because they have the same number of protons and neutrons.

• Because they have the same number of protons as the atomic number.

How does an atom become a negative ion?

• It loses an electron.

• It loses a proton.

• It gains an electron.

• It gains a proton.

Which type of atoms usually become positive ions?

• Metals

• Noble Gases

• Nonmetals

• Metalloids

The atoms of which group rarely forms bonds.

• Group 1

• Group 2

• Group 7

• Group 8

The force that holds atoms or ions together is called

• chemical attraction

• chemical reaction

• chemical bond

• chemical formula

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-4

An ion with a positive charge is a cation.

• true

• false

Which of the following atoms do NOT usually form bonds?

• Calcium

• Neon

• Hydrogen

• Oxygen

Elements can achieve stable electron configuration by

• transferring protons between atoms.

• transferring valence electrons between atoms.

• transferring neutrons between atoms.

• transferring electrons between atoms.

A notation that shows what elements a compound contains and the ratio of the atoms in the compound.

• electron dot diagram

• ionic bond

• covalent bond

• chemical formula

Tags

NGSS.MS-PS1-1

A neutral group of atoms that are joined together by one or more covalent bonds is a

• ionic bond

• molecule

• cation

• anion

Tags

NGSS.MS-PS1-1