Elements Flashcards
1
Q
What is an element
A
An element is a substance made of only one type of atom , that have the same number of protons
2
Q
What does the number of protons decide?
A
The number of proton decide what type of atom it is
3
Q
What is an isotope?
A
An isotope is an atom made of the element that has a different number of neutrons ( different mass number )
4
Q
What is a compound
A
Atoms join ( react ) together to make compounds
A compound is two or more different elements chemically joined together.
e.g water
5
Q
What do atoms do to get a full outer shell?
A
Atoms share or gain/lose electrons to get a full outer shell when they bond ( react )
