Atomic structure Flashcards
1
Q
what is the radius of an atom?
A
1 x 10^-10 metres
2
Q
what is the relative charge and mass of a proton?
A
relative charge= +1
Relative mass= 1
3
Q
what is the relative charge and mass of a neutron?
A
relative charge=0
relative mass=1
4
Q
what is the relative charge and mass of a electron?
A
relative charge= -1
relative mass= 0
5
Q
what are isotopes?
A
> different forms of the same element
>same amount of protons but different amount of neutrons
6
Q
what is an ion?
A
Electrically charged particle, formed when an atom or molecule gains or loses electrons.
7
Q
what is an atom?
A
substance made of only one atom
