Atoms, Compounds and Isotopes Flashcards
1
Q
what is the mass number?
A
The total number of protons and neutrons
2
Q
what is the atomic number?
A
The number of protons and electrons
3
Q
what are the charges and mass of the proton, neutron and electron?
A
Proton= positive and 1 Neutron= neutral and 1 Electron= negative and very small
4
Q
what is a compound?
A
Compounds are formed when atoms of two or more elements are chemically combined an is difficult to separate the two original elements out again
5
Q
what is an isotope?
A
Isotopes are different atomic forms of the same element, which have the same number of protons but a different number of neutrons. An isotope must have the same atomic number but different mass numbers
