Approximately, how many atoms of beryllium would be required to equal the mass of 10 atoms of aluminum?
A)3 atoms of beryllium
B)10 atoms of beryllium
C)30 atoms of beryllium
D)4 atoms of beryllium

Question

Quizplus · Accepted Answer

The atomic mass of beryllium (Be) is approximately 9 u (atomic mass units), and the atomic mass of aluminum (Al) is approximately 27 u. To equal the mass of 10 atoms of aluminum (10 x 27 u = 270 u), you would need about 30 atoms of beryllium (30 x 9 u = 270 u).

Approximately, How Many Atoms of Beryllium Would Be Required to Equal