aydenburdette aydenburdette

22-04-2019
Chemistry

contestada

How many electrons are there in the outermost shells of fluorine (F) atoms?

A. 2
B. 7
C. 9
D. 19

Respuesta :

GreatNikolaTesla GreatNikolaTesla

22-04-2019

Answer:

C. 9

Explanation:

There are 2 electrons in the first shell, and 7 in the second, for a total of 9.

A flouride ion, on other hand, would have 8, since it fills that second shell with an extra electron (that's why it has a charge of -1)

Answer Link

Otras preguntas

When constructing inscribed polygons and parallel lines, how are the steps different? A.) A protractor is used to take measurements. B.) Four right angles are

Using language like “I think” and “in my opinion” can make your writing seem _____. A. vivid B. direct C. uncertain D. confident

What is Omar's net income for October A. $1,000 B. $1,500 C. $ 2,500 D. $ 3,500

Determine the modification of a stem that provides storage.

which equation can be used to find the volume of a sphere that has a radius of 9 miles?

Which of the following is NOT a type of support used in persuasive writing? A). statistics B). definitions C). emotional appeal D). rhetorical questions

Which statement about lines of latitude on a map, also called parallels, is correct? A.) They run in an east and west direction. B.) They run in a north and

For what values of m does the graph of y = mx^2 – 5x – 2 have no x-intercepts?

height difference between 147m and 21m

Determine the empirical formula of the following compound: A 0.4987-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxyg