C1.7 Ions, atoms and isotopes Flashcards
1
Q
What is an ion?
A
When an atom gains or loses an electron
2
Q
How big is a nanometre?
A
1x10^-9 m
3
Q
What are isotopes?
A
A same version of an element but with different number of neutrons
4
Q
What do isotopes have in common with the previous version of the element?
A
The same number of protons and electrons
5
Q
What can a extra number of neutrons do to the nucleus?
A
Make it unstable
6
Q
What do different isotopes have that are different from other isotopes of the element?
A
Different Physical properties
7
Q
Why do isotopes have the same chemical properties?
A
Their electronic structure is the same and the reaction depends on the structure
