Ionic and Covalent Bonds

Which type of bond has one pair of electrons shared between atoms?

• ionic
• single covalent
• metallic
• double covalent

Which is described as the force holding atoms together?

• formula unit
• cation
• lattice
• chemical bond

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-4

How many single covalent bonds can carbon form?

• 2
• 1
• 4
• 3

Which category of elements is commonly used to make computer chips and solar cells due to their ability to conduct electricity only under certain conditions?

• metals
• metalloids
• nonmetals
• noble gases

Which is true of binary ionic compounds?

• They consist of only 2 atoms.
• They have bonds that share 2 valence electrons.
• They contain 2 different anions.
• They consist of atoms of only 2 element types.

In the compound PCl₃, how many total valence electrons are present?

• 24
• 4
• 26
• 8

Which is not a diatomic molecule in nature?

• fluorine
• nitrogen
• boron
• bromine

How many total valence electrons are available in the ion NO₃^-?

• 9
• 22
• 16
• 24

Identify the period and group numbers of the element with the electron configuration [Ne]3s²3p⁴.

• period 2, group 4
• period 3, group 4
• period 3, group 16
• period 2, group 16

Tags

NGSS.HS-PS1-1

Which is the charge that results when oxygen becomes an ion?

• +3
• +2
• -2
• -3

Tags

NGSS.HS-PS1-2