Atomic structure Flashcards
1
Q
What does the group/ period of an element tell you
A
Group -> Tells you how many electrons are in the outer shell
Period –> number of shells
2
Q
How do you calculate number of
a) protons
b) neutrons
c) electrons
A
a) atomic number
b) mass number-atomic number
c) equal to no. of protons
3
Q
what does the mass number tell you
A
total number of protons and neutrons
4
Q
what does atomic number tell you
A
number of protons
5
Q
What is an isotope
A
Atoms of same element with same number of protons, different number of neutrons
6
Q
how does the charge of an ion relate to it’s elements group in the periodic table?
A
The number of charges is the group number of the element
For example, group one metals will lose 1 electron to form a 1+ ion
