Question

I) Complete the following sentences with appropriate words:
1. A _ is the short form that stands for a specific element (symbol / formula)

2. The symbolic representation of a molecule is known as_
(formula/valency

3. The atomic number of an element is the number of_present in it. (electrons/neutrons)

4. The bond formed by mutual sharing of electrons is called as_bond (covalent/ionic)

5. Horizontal rows in the periodic table are known as_
(periods/groups)
​

Answer 1

1.symbol,formula,electrons,covalent,periods

Answer 2

THE ANSWER IS

1.symbol

2.valency

3.elrctrons

4.covslent

5.groups