Chemistry - ions

Front

What charge will a sulfide ion have?

Back

2-

Front

How many valence electrons does magnesium have?

Back

2

Front

Group 17 always has ions with a charge of:

Back

-1

Front

How many valence electrons does Lithium have?

Back

1

Front

What charge will a Beryllium ion have?

Back

2+

Front

Define an ion.

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the charge of a sodium ion?

Back

+1

Front

How do you determine the charge of a main group element ion?

Back

The charge is determined by the number of valence electrons: elements in Group 1 lose 1 electron (+1), Group 2 lose 2 electrons (+2), Group 13 lose 3 electrons (+3), Group 15 gain 3 electrons (-3), Group 16 gain 2 electrons (-2), and Group 17 gain 1 electron (-1).

Front

What is the charge of a chloride ion?

Back

-1

Front

How many valence electrons does oxygen have?

Back

6