Answer:
counting the number of “groups” of electrons around the atom
Explanation:
=>
The electrons determine chemical behavior
Answer:
72.22 g
Explanation:
975 mL Mercury× 13.5 g/mL = 72.22 g
6.060 has 4 significant figures including the zero after the decimal and the zero between non-zeros. 60.6 has 3 significant figures while 606 has also 3 significant figures. 60600 has 3 significant figures. Thus, the number with the greatest number of significant figures is 6.060.