The Atom Flashcards
1
Q
What is the structure of an atom? And what are the subatomic particles?
A
An atom is the smallest chemically indivisible unit of matter, consisting of protons, neutrons & electrons
2
Q
What is an isotope?
A
Isotopes are elements that have the same number of protons but different number of Neutrons. Therefore they have the same atomic number but differ in mass number
3
Q
How is the atomic number of an atom derived?
A
number of protons
4
Q
How is the mass number of an atom derived?
A
protons + Neutrons
5
Q
What is the ratio of protons to electrons in a neutral atom
A
equal (protons = electrons)
