Vocab
What is a period?
Rows on the PTE
How many groups are on the PTE?
18
How do protons affect the mass of an element?
Every extra proton is another unit
How do neutrons affect the mass?
Every extra neutron is another unit.
How do electrons affect the mass?
What is a group?
Coloums on the PTE
How many periods are on the PTE?
7
How do these affect the charge of an element?
They make it postive
How do neutrons affect the charge of an element?
They are neutral
How do neutrons affect the charge?
They lower it
How many electrons can be on the 1st orbital?
2
How many elements are on the PTE?
118
How do these affect the type of element?
Every extra proton, is a new element
How do neutrons affect the type of element?
They dont change it
How do electrons affect the type of element?
they dont change it
What is a valence electron?
The electrons on the outermost shell only
Who developed the first periodic table?
Dmitri Mendeleyev
Where are protons found?
Where are neutrons found?
In the neucleus
Where are electrons found?
In the outer orbitals
What is an Isotope?
An atom with a different number of neutrons than normal
What is the periodic law?
What are they composed of?
Quarks
How much does a neutron weigh?
12.67492749804 times 10 to the -27
How many electrons can be on all the orbitals(not including the 1st one)
8