Atomic model Flashcards
1
Q
Structure of an atom
A
Has a positively charged nucleus surrounded by orbiting negatively charged electrons
2
Q
What is the radius of an atom?
A
1 x 10 (-10) metres
3
Q
relative atomic mass of a proton
A
1
4
Q
relative charge of a proton
A
+1
5
Q
relative atomic mass of an electron
A
1/2000
6
Q
relative charge of an electron
A
-1
7
Q
relative atomic mass of a neutron
A
1
8
Q
relative atomic charge of a neutron
A
0
9
Q
what does the nucleus contain ?
A
protons and neutrons in the centre and electrons orbit outside of the nucleus
10
Q
proton
A
a small positively charged particle found in the nucleus
11
Q
electron
A
a small negatively charged particle that orbits the nucleus
12
Q
order of arrangement
A
electrons shells
sub-shells
orbitals
electrons
