Question

1.CO2 represents one __________of carbondioxide.

2.An atom is electrically___________such that the total__________charge on the nucleus,is equal to total

____________charge of electrons.

3.Neutrons have a mass equal to___________,but have__________electric charge.

4.Sodium chloride is an__________compound.

5.Atomic number of an element is 9.Its valency is_______​

Answer 1

Answer:

1) molecule

2) neutral, positive and negative

3)proton, zero

4) ionic

5) one

Explanation:

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