Periodic Table Flashcards
1
Q
Periodic table
A
The table which organises the 118 elements based on
atomic structure
2
Q
Isotope
A
Two atoms with the same number of protons and
electrons but a different number of neutrons
3
Q
Ion
A
An element with a positive or negative charge
4
Q
Group 1?
A
Alkali metals, more reactive as you go down
5
Q
Group 7?
A
Halogens, higher melting point as you go down
6
Q
Group 0?
A
Noble gases, higher melting and boiling points
