SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What atom matches this electron configuration?1s22s22p63s2
A
Neon
B
Magnesium
C
Aluminum
D
Potassium
Explanation: 

Detailed explanation-1: -The magnesium matches this electron configuration 1s22s22p63s2.

Detailed explanation-2: -The electron configuration of Mg (atomic number 12) is 1s2 2s2 2p6 3s2. Thus, this option is the correct choice.

Detailed explanation-3: -Expert Answer No1.:-Correct Option is (3) Manganese Explanation:-The atomic number of Manganese (Mn) is 25. Thus its electronic configuration is [Ar]4s23d5 Or 1s22s22p63s23p64s23d5 Whereas electro…

Detailed explanation-4: -The electron configuration of sodium is 1s22s22p63s1.

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