Question

Электронная формула алюминия 1s2 2s22p63s23p4 1s2 2s22p6 3s23p2 1s2 2s22p6 3s23p1 1s2 2s22p6 3s23p3

Answer 1

Электронная формула алюминия это  1s2 2s2 2p6 3s2 3p1. То есть 3 вариант правильный

Answer 2

The electronic configuration of aluminum is:

1s² 2s² 2p⁶ 3s² 3p¹

This means that aluminum has 13 electrons. Let's break down the electron configuration step by step:

1. 1s²: The first energy level (n=1) has 2 electrons (2s²).

2. 2s² 2p⁶: The second energy level (n=2) has 8 electrons, with 2 in the 2s orbital (2s²) and 6 in the 2p orbital (2p⁶).

3. 3s² 3p¹: The third energy level (n=3) has the remaining 3 electrons, with 2 in the 3s orbital (3s²) and 1 in the 3p orbital (3p¹).

So, the complete electronic configuration of aluminum is 1s² 2s² 2p⁶ 3s² 3p¹.