Chemistry
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What are Atoms
Tiny particles that make up everything around us
What are the 3 smaller components of an atom called and what are they
Subatomic particles, proton, neutron, electron
What is in the centre of a Bohr diagram
Nucleus
How many electrons can be in the 1, 2, 3 and 4 shell
2,8,8,18
What makes an atom (element) unique?
It’s number of proton neutron and electrons
What is the periodic table similar to
A map that displays 118 elements
What are periods
The 7 rows that go side to side
What are groups
The 18 columns that go up and down
How are elements placed on the periodic table
By their properties
What is a chemical symbol and how is it written
A shorthand code, first letter is always capitalized, the second is lowercase
What are the 3 main sections of the periodic table
Metals non metals and metalloids
What is the Letter on the element box
The chemical or atomic symbol
What is the number at the top of the elements box
The atomic number
What is the word below the letter on the elements box
The chemical / atomic name
What is the number below the word on an element box
The Atomic mass
What does the atomic number do
Determines its position on the table = to the number of protons = to number of neutrons in a neutral atom
What does the atomic mass do
How heavy one atom of the element is = to sum of protons + neutrons
On a diagram the largest circle is..
The outermost shell or orbit
On a diagram the tiny circles on the shells are..
The electrons (-1)
On the diagram the orbs with + in the centre are..
Protons (+1)
On the diagram the orbs with nothing are..
The neutrons
On the diagram the entire centre is the..
Nucleus
What is the proton symbol
P+
What is the neutron symbol
N°