Draw the electron configuration
for theses atoms.
What is the pattern in each set
Always fill the first shell first.
1st shell can hold up to 2 electrons.
The rest of the shells can hold up
to 8 electrons. – COUNT THE
SHELLS CAREFULLY
How many electrons are on the
outer shell of sodium if it is in
group 1?
He
Li
Bell Work:
Sodium has an atomic number of
11 – how many electrons will an
atom of sodium have?
Monday 31 March 2025
Ar
Na
Activate
Draw the electron configuration
for theses atoms.
What is the pattern in each set
Always fill the first shell first.
1st shell can hold up to 2 electrons.
The rest of the shells can hold up
to 8 electrons. – COUNT THE
SHELLS CAREFULLY
How many electrons are on the
outer shell of sodium if it is in
group 1?
He
Li
Bell Work:
Sodium has an atomic number of
11 – how many electrons will an
atom of sodium have?
Monday 31 March 2025
Ar
Na
Activate
Draw the electron configuration
for theses atoms.
What is the pattern in each set
Always fill the first shell first.
1st shell can hold up to 2 electrons.
The rest of the shells can hold up
to 8 electrons. – COUNT THE
SHELLS CAREFULLY
How many electrons are on the
outer shell of sodium if it is in
group 1?
He
Li
Bell Work:
Sodium has an atomic number of
11 – how many electrons will an
atom of sodium have?
Monday 31 March 2025
Ar
Na
Activate
Draw the electron configuration
for theses atoms.
What is the pattern in each set
Always fill the first shell first.
1st shell can hold up to 2 electrons.
The rest of the shells can hold up
to 8 electrons. – COUNT THE
SHELLS CAREFULLY
How many electrons are on the
outer shell of sodium if it is in
group 1?
He
Li
Bell Work:
Sodium has an atomic number of
11 – how many electrons will an
atom of sodium have?
Monday 31 March 2025
Ar
Na
Activate