Atoms, isotopes and ions Flashcards
1
Q
draw the table of the mass and charge of protons, neutrons and electrons
A
2
Q
what defines an element?
A
the number of protons in the nucleus
3
Q
in a neutral atom that hasn’t been ionised(lost an electron) the number of…is the same
A
electrons and protons
4
Q
the mass number is?
A
the number of protons AND neutrons in an atom
5
Q
the atomic number?
A
the number of protons ALONE.
6
Q
what are isotopes?
A
Isotopes are forms of an element that have the same number of protons but different numbers of neutrons.
7
Q
what are ions?
A
Electrically charged particle, formed when an atom or molecule gains or loses electrons.
