Question

D-Элементу 4-го периода Периодиче¬ской системы соответствует электронная фор¬мула: A.ls22822p63s23p63d104s24p1 Б. ls22s22p63s23p63d24s2. B.ls22s22p63s23p64s2 Г. ls22s22p63s23p2. Желательно с объяснением. Заранее спасибо!

Answer 1

А- галлий, посчитай все цифры, что над буквами, сложи, получится порядковый номер, который нужно искать в таблице Менделеева Б - титан В - кальций Г - кремний, только он в 3 периоде

Answer 2

The electronic configuration of the D-element in the 4th period of the periodic table is:

The given electronic formula is: A.ls22822p63s23p63d104s24p1

To determine the correct electronic configuration, let's break down the formula and analyze each part:

A.ls22822p63s23p63d104s24p1

- A: This represents the noble gas configuration that comes before the D-element. It indicates that the D-element is in the 4th period. - ls2: This represents the 1s orbital, which can hold a maximum of 2 electrons. - 2822p6: This represents the 2s and 2p orbitals, which can hold a maximum of 6 electrons. - 3s2: This represents the 3s orbital, which can hold a maximum of 2 electrons. - 3p6: This represents the 3p orbital, which can hold a maximum of 6 electrons. - 3d10: This represents the 3d orbital, which can hold a maximum of 10 electrons. - 4s2: This represents the 4s orbital, which can hold a maximum of 2 electrons. - 4p1: This represents the 4p orbital, which can hold a maximum of 1 electron.

Putting it all together, the electronic configuration of the D-element in the 4th period is:

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p1

Therefore, the correct electronic configuration for the D-element in the 4th period of the periodic table is ls2 2s2 2p6 3s2 3p6 3d10 4s2 4p1.