The atomic numbers of Mg and Al are 12 and 13 respectively. Write the electronic configuration of each element. Which of these two has large atomic radius?
Answers
Answered by
2
Explanation:
Element K L M N
Mg. 2. 8. 2. -
Al. 2. 8. 3. -
Answered by
6
Mg and Al
Explanation:
Magnesium (Mg). Atomic number = 12
Electronic configuration = 2, 8, 2
1s2, 2s2 2p6, 3s2 in K, L and M shells respectively.
Aluminium (Al). Atomic number = 13.
Electronic configuration = 2, 8, 3
1s2, 2s2 2p6, 3s2 3p1 in K, L and M shells respectively.
Atomic radius as we go from left to right in a period table. So, Al has an atomic radius smaller than that of Mg.
Similar questions