C1 Flashcards
1
Q
Isotope
A
Atoms that have the same number of protons but a didfferent amount of neutrons . Ie they have the same atomic number but different mass number
2
Q
Noble gases
A
The very unrewctive gases found in group 0 of the periodic table. Their atoms have very stable electronic structures.
3
Q
Ion
A
A charged particle producded by the loss or gain of electrons
4
Q
Law of conservation of mass
A
The total mass of thr product is equal to the total mass of the reactants
5
Q
Mass number
A
Number of protons in thr nucleus of an atom plus neutrons
6
Q
Atomic numbe
A
D
Number of protomx
7
Q
When are positive ions formed
A
If atoms lose electrons
8
Q
What does the number of electrons in the outer shell tell us
A
It determined the way it reacts
