alexgonzales5987 alexgonzales5987
  • 21-08-2020
  • Chemistry
contestada

Draw the Lewis structure for H2O. How many lone pairs of electrons are there in the central atom?

Respuesta :

jescaherga jescaherga
  • 25-08-2020

Answer:

2 lone pairs of electrons

Explanation:

In this case, the central atom is oxygen. If we check the periodic table we will have an atomic number of 8. So, the electronic configuration would be:

[tex]1s^2~2s^2~2p^4[/tex]

We have 6 electrons in the last level. Therefore, we have 6 valence electrons. For the hydrogens, we will have only 1 electron each. So, in total, we have 8 electrons.

With this in mind, we have to draw two lone pairs in the oxygen and 1 bond with each hydrogen.

See figure 1.

I hope it helps!

Ver imagen jescaherga
Answer Link

Otras preguntas

Bài 1. Tính a) 3x(2x – 5) b) (x+1)(x + 4) c) (7 – x)( x + 7) d) ( + 2)2 e) (3 – 2x)2 f) (x – 2)(x2 + 2x + 4) Bài 2. Phân tích các đa thức sau thành nhân tử: a)
Need some help I’m really trying graduate
domain and range question
Find the surface area of a cylinder with a base radius of 4 cm and a height of 7 cm. Use the value 3.14 for a, and do not do any rounding. Be sure to include th
May I please receive help? Please?
The price of an item has dropped to $68 today. Yesterday it was $80. Find the percentage decrease.
Which of the following correctly orders events during mitosis? a) Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle att
solve pls branliest!
8 liters is the same as how many gallons? round anwer to the nearst tenth
answer for y = x^{2} – 10x