Atomic structure

Question 1

Definition of isotopes

Answer 1

atoms of the same element that have the same number of protons but different numbers of neutrons

Question 2

Definition of isotonic

Answer 2

2 elements that have the same number of neutrons but different numbers of protons

Question 3

What caused the big jump in a graph measuring the energy level of the subshells

Answer 3

Changing of principal quantum number

Question 4

Why greater the principal quantum number the greater energy level

Answer 4

The further away from the nucleus, the greater the force of attraction you need to overcome

Question 5

Aufbau principal

Answer 5

electrons occupy orbitals in terms of increasing energy level, with the lowest energy levels being filled first

Question 6

Pauli Exclusion principal

Answer 6

An orbital cannot hold more than 2 electrons and these 2 electrons must have opposite spins

Question 7

Formula for angle of deflection

Answer 7

charge/mass

Question 8

Hund’s rule

Answer 8

the orbitals of a subshell must be occupied singularly with parallel spins before they can be occupied in pairs

Question 9

Atomic number

Answer 9

Number of protons

Question 10

Mass number

Answer 10

Number of nucleons (protons+neutrons)