Grade 9 chemistry
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21 Terms
where is the proton located
inside the nulcleus
what is the relative mass in a proton?
One
what group is argon in?
Noble gases
What is the charge of a proton?
positive one
where is the neutron located?
inside the nucleus
Where is the electron located at?
outside the nucleus
what is the relative mass of neutron?
One
What is the charge of a neutron?
neutral
what is the relative mass of an electron?
1/2000
What is the charge of a electron?
negative one
is calcium a nonmetal or metal?
Metal
What group is calcium in
alkaline earth metals
is magnesium a nonmetal or metal?
Metal
What group is magnesium in
Alkaline earth metals
It's Argon a nonmetal or metal
nonmetal
is bromine and nonmetal or metal
Nonmetal
what group is bromine in?
halogens
How many valence electrons does silicone have?
Four
as you go across a period on periodic table the number of valence electrons…….
decreases
as you go down a group on the periodic table, the number of valence electrons…..
increases