Chem Unit 4 Naming, Bonding, Electrons, Molecular Review

The sum of neutrons and protons in a given nucleus is referred to as the

• proton number

• mass number

• atomic number

• isotope number

• neutron number

How may electrons are in the bromine atom?

• 35

• 36

• 46

• 70

• 80

Tags

NGSS.HS-PS1-1

How many electrons are in the bromide ion?

• 35

• 36

• 46

• 70

• 80

What is the symbol for an ion having 12 protons and 10 electrons?

• Si⁺²

• Si

• Mg⁺²

• Ne

• Ne^-2

Tags

NGSS.HS-PS1-1

What is the symbol for an ion having 15 protons and

18 electrons?

• Ph^-3

• Ar

• P⁺³

• Cl^-

• P^-3

Tags

NGSS.HS-PS1-1

How may valence electrons are in a lithium atom?

• 1

• 2

• 3

• 7

• 8

Tags

NGSS.HS-PS1-1

How many valence electrons are in a lithium ion?

• 1

• 2

• 3

• 7

• 8

How many valence electrons are in an oxygen atom?

• 1

• 2

• 6

• 7

• 8

How many valence electrons are in an oxygen ion?

• 1

• 2

• 6

• 7

• 8

Aluminum carbonate is considered which of the following?

• atomic element

• molecular element

• molecular compound

• ionic compound