chem - first test Flashcards
1
Q
how much do protons and neutrons weigh
A
1 amu
2
Q
what are orbitals
A
the fixed energy levels around the nucleus that the electrons occupie
3
Q
what is an isotope
A
an element with different numbers of neutrons but the same number of electrons and protons
4
Q
the relationship between elements and atoms
A
atoms have the same properties of an element th3y are just smaller and can b divided further without losing properties
5
Q
atoms are made up of
A
protons
neutrons
electrons
6
Q
what are quantom numbers
and example
A
the energy levels around the nucleus that electrons occupy
example : 1, 2, 3, ….
7
Q
what are sub energy levels
and example
A
the quantum numbers being divided further
example : s, p, d ….
8
Q
wh@t does the n represent
n = …
A
the energy levels
