FC1: Atoms and Ions Flashcards
1
Q
Orbital definition
A
A region of space around a nucleus which can hold up to two electrons with opposite spins
2
Q
Why do electrons go into different orbitals where possible?
A
Reduces repulsion
3
Q
How many electrons can go into a:- S sub shell P sub shell D sub shell F sub shell
A
2
6
10
14
4
Q
Isotopes definition
A
Atoms of the same element with a variation in its number of neutrons
5
Q
What is the relationship between protons, electrons and neutrons/ how do you know how many there are?
A
Protons = proton number Neutrons = mass number - proton number Electrons = protons +/- dependent on charge (negative = more electrons
6
Q
What is the relative mass of protons, electrons and neutrons?
A
Proton 1
Neutron 1
Electron 1/2000
