Ionic Bond

Beryllium will ____ valence electrons when forming an ionic bond.

• lose 4

• gain 4

• lose 2

• gain 2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is true for ionic bonding & ionic compounds?

• They must be made of ions with like charges.

• The negative ion must be written first.

• Compounds must have an overall charge of zero.

• They are made of metals and nonmetals.

• The positive ion must be written first.

Tags

NGSS.HS-PS1-3

In the chemical formula for an ionic compound, which item is written first?

• positive ion

• negative ion

• subscript

• the female

Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?

• There are 2 bromide ions for every magnesium ion

• Bromide has a 2- charge

• Bromide has a 2+ charge

• There are 2 magnesium ions to every bromide ion

Tags

NGSS.MS-PS1-1

An ionic bond forms when 

• Valence electrons are shared

• a sea of mobile electrons surround the cations

• valence electrons are transferred between atoms

• none of the above

Tags

NGSS.MS-PS1-5

What is the charge of ion "X" in the formula XF₃?

• +3

• -3

• +1

• -1

What is the charge of ion "X" in CaX?

• +1

• -1

• +2

• -2

Which of the following pairs of elements will NOT form an ionic compound?

• sodium and fluorine

• phosphorous and aluminum

• potassium and magnesium

• strontium and oxygen

Which is the correct name for CaBr₂?

• Calcium Bromine

• Bromine Calcium

• Calcium Bromide

• Carbon and Bromine

Tags

NGSS.MS-PS1-1

Which is the correct formula for aluminum sulfide?

• AlS

• Al₃S₂

• S₃Al₂

• Al₂S₃

Tags

NGSS.MS-PS1-1