Which of the following electronic configuration (K, L, and M) is correct for magnesium atom whose atomic number is 12?
a) 2,6,4
b) 2,7,3
c) 2,3,2
d) 2,8,2
Which of the following electronic configuration (K, L, and M) is correct for magnesium atom whose atomic number is 12?
a) 2,6,4
b) 2,7,3
c) 2,3,2
d) 2,8,2
What is the symbol for aluminum atom?
a) A
b) Al
c) Am
d) L
Which of the following electronic configuration (K, L, and M) is correct for aluminum atom whose atomic number is 13?
a) 2,5,6
b) 2,8,3
c) 2,2,9
d) 2,9,2
What is the symbol for silicon atom?
a) S
b) Se
c) Si
d) Sn
Which of the following electronic configuration (K, L, and M) is correct for silicon atom whose atomic number is 14?
a) 2,8,4
b) 2,4,8
c) 2,2,10
d) 2,7,5
