The Atom Flashcards
1
Q
Atom
A
Samllest partice of matter
2
Q
Where are electrons found
A
Shells
Energy levels
Principle quantum number
3
Q
What is Z
A
Atomic number
=protons
=electrons
4
Q
What is A
A
Mss number
A-z = proton
5
Q
What is an ion
A
An atom with an excess of deficiency of electrons
6
Q
What is an obital
A
A region with the highest probability of finding an electron
7
Q
What are isotopes
A
Atoms with the same element
Same atomic number
Different mass number due to different amount of neutrons
8
Q
What is the unit of measurement of relative atomic mass
A
Ar
9
Q
What is the formula for relative atomic mass
A
Ar(element)= mass x percentage + mass x percentage
100. 100
