Atoms

What is the symbol of electrons?

• e-

• p

• n

• e+

How many electrons this atom has?

• 2

• 6

• 8

• 10

In a neutral atom number of electrons.....to the number of protons.

Define an atom

Draw the atomic structure of oxygen atom if it has 8 protons.

How many number of neutrons in this atom?

• 4

• 2

• 6

• 8

Electrons are ..... charged

Write the composition of Cl-35 atom having 17 protons.

Elements in the same column have the same......properties.

Explain the bond formation between H and Cl in HCl molecule.