elainelytal9143 elainelytal9143

04-07-2017
Chemistry

contestada

Consider oxygen, which has an atomic number of 8 and an atomic mass of 16. how many valence electrons does it have?a. 2

Respuesta :

mathmate mathmate

09-07-2017

The maximum size of the inner shells are 2,8,18...
Valence electrons are found in the outermost shell of an atom (most of the time).
So the valence electrons of oxygen lies in the second shell, which has 8-2=6 valence electrons.

Answer Link

Otras preguntas

What is an "alloy" in the chapter of metals in chemistry??

You are given an aqueous solution of NaCl. The simplest method for the separation of NaCl from the solution is (A) evaporation of the solution to dryness (B) c

During a recent winter, the ratio of deer to foxes was 7 to 3 in a town. If there was 210 foxes in the town, what was the number of deer in the town?

How does latitude affect climate

what were the 4 major causes of imperialism?

Can the sum of two mixed numbers be equal to 2 ? Explain why or why not.

The outermost tissue of a tree trunk that is 6 feet in diameter would most likely be (A) epidermis (B) cork (C) cortex (D) phloem (E) xylem

need help with this question#20

write 540 as a product of prime numbers

Approximately how many miles apart are Petrograd and Moscow ? A. 200 B. 350 C. 500 D. 650