Electron Configuration

Question 1

Atomic number

Answer 1

– number of protons (also the number of electrons in an uncharged atom)

Question 2

Atomic mass/mass number –

Answer 2

number of protons + neutrons

Question 3

Energy level :

Answer 3

As you go down the rows/periods in the periodic table, you are moving further from the nucleus, so the level of energy of the electrons occupying these levels increases.

Question 4

Sublevel:

Answer 4

each energy level are divided into sublevels/subshells: s,p,d

Question 5

Orbital:

Answer 5

each sublevel has its own subdivisions called ‘orbitals’