makaylac21625 makaylac21625

08-02-2021
Chemistry

contestada

The electron configuration of an element is 1s22s2. How many valence electrons does the element have? (1 point) a 1 b 2 c 3 d 4

Respuesta :

14-02-2021

Answer:

b

Explanation:the shell is 2 so ignore the 1s electrons it is only the level 2 electrons that are valence

Answer Link

Otras preguntas

why has north korea's nuclear program created conflict in the region

Thick, brownish haze formed when certain gases in the air react with sunlight called?

What military advantage did the Union have over the Confederacy in the West?

The key words in a sentence often include the: _____. Select all that apply. subject predicate adjectives adverbs direct object indirect object subject compleme

Sparta was located in a. the attica peninsula. b. macedonia. c. the peloponnesus. d. boeotia. e. the strait of corinth.

if you were asked to convert 25 hg to the unit cg, which of the following would be the first fraction used in the conversion?

William earns a base salary of $150 every week with an additional 12%, percent commission on everything he sells. If William sold $6050 worth of items last week

ames Dean, Elvis Presley, and Allen Ginsberg were all popular with youth in the 1950s. What did they represent?

A __________ carries clouds of soil and sand over an area of land.

How did the kansas-nebraska act cause more violence?