Free Printable Charges of Elements and Polyatomic Ions

Worksheets

Charges of Elements and Polyatomic Ions

Total questions: 25

Worksheet time: 27mins

Name

Class

Date

Which of the following is chromate?

CrO₄^2-

CrO₃^2-

CrO₂^2-

CrO^2-

Identify Cessium Nitrate

CsNO₃

Cs₂(NO₃)₃

Cs₂NO₃

Cs₃NO₃

What is the name of K₃PO₄?

Tripotassium Phosphate

Tripotassium Phosphite

Potassium phosphide

Potassium phosphate

What is the name of Mg(OH)₂?

Magnesium Hydride

Magnesium Dihydride

Magnesium Dihydroxide

Magnesium Hydroxide

Ions are:

atoms with a positive or negative charge

atoms with no charge

atoms with ONLY a positive charge

atoms with ONLY a negative charge

What is the correct name for this polyatomic ion: ClO^–

hypochlorite

chlorite

chlorate

perchlorate

What is the correct name for this polyatomic ion: CN^–

carbonate

cyanide

chromate

chromite

What is the correct name for this polyatomic ion: OH^–

hydrogen carbonate

oxonium

hydroxide

acetate

What is the correct name for this polyatomic ion: NO₃^–

carbonate

hydroxide

nitrite

nitrate

10.

What is the correct name for this polyatomic ion: CrO₄^2–

chromate

dichromate

carbonate

ammonium

11.

What is a cation's charge?

positive

negative

neutral

depends on the element

12.

What is an anion's charge?

positive

negative

neutral

depends on the element's charge

13.

Is potassium a cation or an anion?

cation

anion

14.

What is the charge of iron (III)?

15.

What is the charge of phosphate?

-3

-2

-1

-4

16.

Is the ion ammonium a cation or an anion?

cation

anion

17.

Identify the compound if hydrogen and chlorine are chemically combined.

HCl

HCl₇

H₁Cl₁

H₁Cl₇

18.

Is the ion permanganate a cation or an anion?

cation

anion

19.

What is the cation charge of chromium (VI)?

-6

+24

-24

20.

C₂H₃O₂^-

acetate

carbon hydroxide

21.

NH₄⁺

nitrogen hydride

ammonium

22.

How many valence electrons does Phosphorus have?

23.

Which of the following describes an ionic bond?

does not conduct electricity

has a low melting point

between nonmetals

between metals and non-metals

24.

Elements in the same _________ have the same number of valence electrons

Row

Group

Metals

Nonmetals

25.

What is the charge on a noble gas & why?

0; they don't exchange electrons

+1; they give away an electron

-1; they gain an electron

1; they form only single bonds

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Charges of Elements and Polyatomic Ions

Total questions: 25

Worksheet time: 27mins

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