P (Z = 15): 1s22s22p63s23p3 Þ P có 5 electron hóa trị cần thêm 3 electron để đạt octet.

H (Z = 1): 1s1 Þ H có 1 electron hóa trị cần thêm 1 electron để đạt octet.

Khi hình thành liên kết, P góp chung 3 electron với 3 electron của 3 H ⇒ Trong PH3, xung quanh P có 8 electron giống khí hiếm Ar còn 3 H đều có 2 electron giống khí hiếm He.

I had a chance to go to "BORN PINK" concert by my favorite girl group, BLACKPINK three months ago. This tour was celebrated at My Dinh stadium, Hanoi capital on 29th, 30th of July. This concert took place took place in an outdoor stadium. Firstly, I was worried that the concert would be cancelled because of the heavy rain. Luckily, the weather became better, the concert was still on