State the connection between the number of electron shells and the period number in the periodic table.

Identify the particle of an atom from the given statement.

Statement: The positively charged particle present in an atom.

Note: For each statement write,

$\mathrm{p}$ if it describes proton.

$\mathrm{e}$ if it describes electron.

$\mathrm{n}$ if it describes neutron.

Identify the particle of an atom from the given statement.

Statement: The particle that is found with proton present in the nucleus of an atom.

Note: For each statement write

$\mathrm{p}$ if it describes proton.

$\mathrm{e}$ if it describes electron.

$\mathrm{n}$ if it describes neutron.

Identify the particle of an atom from the given statement

Statement: The particle that can occur in different numbers, in atoms of the same element.

Note: For each statement write:

$\mathrm{p}$ if it describes proton.

$\mathrm{e}$ if it describes electron.

$\mathrm{n}$ if it describes neutron.

Identify the particle of an atom from the given statement

Statement: The particles that are held in shells around the nucleus of an atom.

Note: For each statement write:

$\mathrm{p}$ if it describes proton.

$\mathrm{e}$ if it describes electron.

$\mathrm{n}$ if it describes neutron.

Identify the particle of an atom from the given statement

Statement: The negatively charged particle in an atom.

Note: For each statement write:

$\mathrm{p}$ if it describes proton.

$\mathrm{e}$ if it describes electron.

$\mathrm{n}$ if it describes neutron.