Ionic and Covalent Bonding Concepts

Why do elements strive to achieve electron configurations similar to noble gases?

• To lose protons

• To gain more electrons

• To become stable

• To become more reactive

What is an anion?

• An element that gains electrons

• An element that loses protons

• An element that loses electrons

• An element that shares electrons

What happens to an element on the left side of the periodic table in terms of electron configuration?

• It gains electrons

• It loses electrons

• It shares electrons

• It gains protons

What is the charge of calcium after it loses two electrons?

• Ca+

• Ca2-

• Ca2+

• Ca-

Why do we need two fluorine atoms to balance the charge of one calcium ion?

• Because calcium has a charge of 3+

• Because fluorine has a charge of 2-

• Because calcium has a charge of 1+

• Because fluorine has a charge of 1-

What is the formula for the compound formed between calcium and fluorine?

• Ca2F2

• CaF2

• Ca2F

• CaF

Tags

NGSS.MS-PS1-1

What is a covalent bond?

• A bond where protons are shared

• A bond where electrons are transferred

• A bond where electrons are shared

• A bond where neutrons are transferred

Tags

NGSS.HS-PS1-1

Which elements are most likely to form covalent bonds?

• Elements in columns 16 and 17

• Elements in columns 14 and 15

• Elements in columns 3 and 4

• Elements in columns 1 and 2

Tags

NGSS.MS-PS1-1

How many valence electrons does carbon have?

• 2

• 4

• 6

• 8

What happens to chlorine when it bonds with carbon?

• It shares one electron

• It loses one proton

• It loses one electron

• It gains one electron

Tags

NGSS.MS-PS1-1