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.

Vận dụng quy tắc octet để giải thích sự tạo thành liên kết hóa học trong phân tử phosphine (PH3). Biết P (Z = 15); H (Z = 1). (ảnh 1)

Here’s an example of how you could write a blog post for this music event experience:

Last weekend, I attended the “Summer Vibes Music Festival,” held on August 15th at the downtown arena. I went with my best friends, Lisa and Jake, who are huge music fans like me. The atmosphere was electrifying – neon lights, loud beats, and a crowd full of energy made the experience unforgettable.

We got there early to get good spots near the stage. As the night went on, we danced to some of our favorite songs, cheered for the artists, and enjoyed the incredible light show. I felt a mix of excitement and pure joy throughout the event. It was amazing to be part of something so lively and thrilling. I can’t wait for the next festival!