Atoms Flashcards
An electron in the outer most that is occupied by a level of an atom is called?
A valance electron
The number of protons in an atoms is?
The atomic number
The centre of an atom which is composed of protons and neutrons is the?
Nucleus
Of an atoms is the sum of the number of protons and the number of neutrons?
The mass number
Describe the realitive masses of a proton, a neutron, and an electron.
What charge, if any does each have?
A positively charge nucleus with the negatively charged electrons
What can you determine from the atomic number of an atom?
The number of protons in the nucleus of each atom of that element.
Describe the number of valence electrons in each atom as you go down to group 2 in the period table?
There are 2 valence electrons.
What arragement of valence electrons makes an atom non reactive.
When the outermsot shell is full. The group 18.
Grab a pencil and paper.
For your element what is the number of protons, neutrons, electron and your metal?
Your element is Litium.
Protons: 3
Neutrons: 3
Electrons: 4
Metal: Metal
For your element what is the number of protons, neutrons, electron and your metal?
Your element is Phosphrus
Protons: 15
Neutrons: 15
Electrons: 16
Metal: non-metal
For your element what is the number of protons, neutrons, electron and your metal?
Your element is Aluminum
Protons: 13
Neutrons: 13
Electrons: 14
Metal: metal
For your element what is the number of protons, neutrons, electron and your metal?
Your element is Carbon
Protons: 6
Neutrons: 6
Electrons: 6
Metal: non-metal
For your element what is the number of protons, neutrons, electron and your metal?
Your element is Silicon
Protons: 14
Neutrons: 14
Electrons: 14
Metal: metalliod
For your element what is the number of protons, neutrons, electron and your metal?
Your element is Chlorine
Protons: 17
Neutrons: 17
Electrons: 18
Metal: non-metal
Draw a bohr rutherford of Litium, Phosphorus, Alumnium, Carbon, silcon, Cholrine.
Search them up.
