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C2 topic 1: elements

paigeysonghurst Englisch 7 Karten

Karten in diesem Stapel (7)

1What does each element have a different number of?Protons
2What type of element it is depends on the number of?......Protons
3The atomic number tells you how many of what there is?....protons
this also means the atomic number tells you the amount of electrons.
4No two elements have the same what?Atomic number/protons/electrons
5What does the mass number tell you?How many protons and neutrons there is.
6How do you work out the number of neutrons?Mass number - Atomic number
7Why is the mass number USUALLY double the atomic number?There is USUALLY the same number of protons and neutrons.