Groups are columns
Periods are rows
They are the SAME THING
carbon (group 14, period 2) hydrogen (group 1, period 1) nitrogen (group 15, period 2) oxygen (group 16, period 2) sulphur (group 16, period 3) halogens (group 17, period 2-5)
Group number 12, period number 4 Transition metal
Calcium is present in period 4. its group no. is 2
Nickel is a natural element and technetium is an artificial element.For example technetium is placed in the group 7 and period 5 of the periodic table and nickel is placed in the group 10 and period 4 of the table.
The size
Nothing.
52
They are the SAME THING
what is the differenc
I've never heard of phatmocology
3.0 is better than 2.0
One is a fish, the other a fruit.ejd
A river has a v and an i in it and a stream has a t and a s and a m in it. !
what is differenc between high relief and normal relief
Stroke is an embolus or bursting of a vessel, an aneurysm is vascular widening
Term life is insurance is only valid for the given period of time within the policy as whole life insurance coverage is for the entire duration of ones life.