Question

FILL IN THE BLANKS
1. A group of .............. atoms, molecules or ions is called one mole.
2.The unit of atomic mass is..........
3.one mole of S, contains ................. atoms.
4.dalton's atomic theory provides explanation for the various laws of ........
5. A............ is the smallest particle of an element or compound
independent existence.
6.Naturally occurring oxygen is a mixture of atoms of slightly different masses called...........
7.Formula mass and not molecular mass is used for substance whose constituent
particles are ...........
Avogadro's number 8.represents ................ particles of a substance.
9.The combining power of an element is known as
in The abbreviations used for the lengthy names of elements are termed ............​

Answer 1

Answer:

1. 6.022×10^23

2. amu(atomic mass unit) and now known as u

3. 6.022×10^23

4. Chemical combinatio

5. atom

6. Isotopes

7. ions

8.

9. Valency

10. IUPAC Symbol

Answer 2

Answer:

1. 6.022 x 10^23

2. amu

3. 6.022 x 10^23

4. chemical combination

5. molecule

6. isotopes

7. ions

8.

9. valency

10.