atomic structure Flashcards
1
Q
what is the symbol, relative mass, and relative charge for protons?
A
p, 1, +1
2
Q
what is the symbol, relative mass, and relative charge for electrons?
A
e, 1/1840, -1
3
Q
what is the symbol, relative mass, and relative charge for neutrons?
A
n, 1, o
4
Q
are atoms electrically neutral?
A
yes, atoms are electrically neutral. they contain an equal number of protons and electrons
5
Q
how to find number of neutrons?
A
mass number-proton number
6
Q
isotopes definition?
A
isotopes are atoms of the same element with the same number of protons, different number of neutrons
