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

H (Z = 1): 1s1 => 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.

Last weekend, I had the incredible opportunity to attend Echoes of Sound, a live music festival held at Riverside Park on November 4th. I went with a few friends, and we were all buzzing with excitement as we approached the venue. The atmosphere was electric, with a mix of anticipation and excitement in the air. The park was transformed into a vibrant space, filled with colorful lights, food trucks, and music from local bands.

We spent the day hopping between stages, dancing to indie tunes, and enjoying the diverse crowd. The highlight was the headliner, a rock band that got everyone on their feet. The energy was contagious, and I couldn’t help but feel a rush of joy and freedom. It was an unforgettable experience, and I left feeling inspired and deeply connected to the music and the people around me.