Atomic Structure Flashcards
What are the names of the atoms sub atomic particles?
Protons , neutrons, electrons
Where is the cluster of protons and neutrons found?
The nucleus
Where do electrons live?
In shells representing different energy levels
How are elements organised on the periodic table?
By the order of their atomic number
What is the relative mass of
Proton
Neutron
Electron
1
1
1/1840
What is the relative charge of
Proton
Neutron
Electron
+1
0
-1
How do you find the number of PROTONS , NEURONS and ELECTRONS?
The atomic number X mass number
What is the atomic number
Is the number of protons in the nucleus of an atom
What is the mass number
Is the total number of protons and neutrons in the nucleus of an atom
Does the number of protons and electrons have to be the same
Yes
The number of protons = the number of electrons
How do you find the number of neutrons
Mass number - number of electrons
(Top number - bottom number)
Is the top number the mass or atomic number
Mass
Is the bottom number the mass or atomic number
Atomic
It’s also the number of protons and electrons
How many electrons can be in each shell
2
8
8
8
What is the electronic structure of magnesium if it has 12 protons
2,8,2