Question

E. Name the following.
1. The smallest indivisible particle of an element
2. The definite paths in which the electrons of an atom move
3. The attractive forces that hold the atoms of a molecule together
4. The number of atoms present in the molecule of an element
5. The combining capacity of an atom of an element
6. Elements with a valency equal to 3
7. An atom that gains one or more electrons to form a negative ion
8. An ion that consists of a group of atoms with an overall charge
F. Write the symbols for the following elements.
1. Sodium
2. Potassium
3. Magnesium
4. Silicon
5. Argon​

Answer 1

Answer:

1. An atom is the smallest particles of an element, having the same chemical properties as the bulk element.

2. Bohr suggested that the electrons travel around the nucleus in defint path these path are located in levels at certain distance from the nucleus.

3. The forcess of attraction which hold the atoms in molecules of compound is called chemical bonds.

4. The number of atoms present in a molecule of a substance is called its atomicity. example Atomicity of helim (he) is one it is monoatomic.

(F) 1. Na 2.K 3. Mg 4.Si 5.Ar