16
There are two carbon atoms in one molecule of CO2.
There are 2 oxygen atoms in the carboxyl group COOH.
12
Nitrogen is an element. It is usually found as the molecule N2 not N. Therefore there are two atoms of nitrogen in this molecule.
1
C16 timber is sawn softwood structural timber which has been treated and strength graded
3 atoms NH3
Chlorophyll a has 137 atoms in the molecule.
how many atoms are in this compound
It is the second weakest grade in this scale: C14, C16, C18, С22, С24, С27, С30, С35 and С40.
concrete and cement
4
2
1
There are two carbon atoms in one molecule of CO2.
There are 2 oxygen atoms in the carboxyl group COOH.
15 .4 hope this has helped