2.1 Atomic structure and isotopes Flashcards
1
Q
what is the atomic number?
A
number of protons
2
Q
what is an isotope?
A
atoms of the same element with different numbers of neutrons but same number of protons and electrons
3
Q
what is the mass number?
A
number of protons and neutrons
4
Q
what is a cation?
A
a positive ion
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5
Q
what is an anion?
A
a negative ion
6
Q
what is an ion?
A
an atom with the same number of neutrons and protons but different number of electrons
