Option no. 2 subtracting the atomic number from the mass number
Example: Zn - 65 atomic weight or mass/mass number
30 atomic number
65-30 = 35 number of neutrons
Answer:
helium
Explanation:
By losing an electron, they look like the noble gas that immediately precedes them on the periodic table.
Answer:
B. physical property is the answer
Formula is (CH3)2CHCH2C(CH3)3 and the name is 2,2,4-trimethylpentane
