An atom of calcium contains 20 protons how many electrons does it have
1 answer:
20.
Atomic number is equivalent to its protons and electrons. :)
You might be interested in
Answer:
Chlorophyll is one. I can't quite remember other
Mass = moles x molar mass
so mass of 6 moles of h2 is: 6×1×2 = 12g
I’m thinking it’s gold because lead isn’t with cooper meaning that if u switch lead with cooper it won’t work at all .
An organic compound that contains a carbonyl group with a hydroxyl group attached to it is an example of a (d) carboxylic acid.
Answer:
106 gfm
Explanation:
element. number masses
Na. 2 23×2
C. 1. 12
O. 3. 16×3
then add
106 gfm
