TessaBJ5511 TessaBJ5511

14-11-2017
Chemistry

contestada

How many valence electrons are in an atom of magnesium? (atomic number 12)?

Respuesta :

Kalahira Kalahira

23-11-2017

As magnesium has atomic number 12 it's electronic configuration is 2,8,2 in the K,L,M shells.Thus as we can see it has 2 electrons in the outermost shell hence, it has 2 valence electrons.

Answer Link

Otras preguntas

The ____ of exercise determines the health and fitness benefit of the exercise. The A. frequency B. intensity C. time D. type Please select the best answer from

Why do animals need to take in oxygen? A) to break down fuel molecules B) to keep less oxygen in the atmosphere C) to build fuel molecules from carbon dioxide D

what is trade diversification. write any 5 advantage

A factory receives an order for 94,500 tennis balls for a major U.S. tournament three tennis balls are packed in each can how many cans of tennis balls does the

In your opinion how should the United States handle the immigration policy

What happened on September 11, 2001? 1. The National September 11 Memorial and Flight 93 National Memorial opened. 2. Lawmakers created the Department of Homela

Complete the dialogue between Beto and Carmen with the correct form of the verb in parentheses

Describe that path of the royal road??????

Why do nestlings streachs their wings?

Can somebody help me with career please?