4.1.1.1 Atoms, elements and compounds Flashcards
(5 cards)
1
Q
what is the centre of atom called?
A
nucleus
2
Q
what particles are found in the nucleus in an atom?
A
protons and neutrons
3
Q
what orbits the shell of an atom
A
Electrons
4
Q
what is an element?
A
An element is an atom with a particular number of protons
5
Q
what are compounds?
A
Compounds are made of two or more elements, chemically combined in fixed proportions.
