fqjenfiq6901 fqjenfiq6901

10-08-2017
Chemistry

contestada

The atomic number of this element is 9 and its mass is 20. how many neutrons does this element have?

Respuesta :

Willchemistry Willchemistry

16-08-2017

Hey there!

n = A - Z

n = 20 - 9

n = 11

Answer Link

faizanshaukat89 faizanshaukat89

03-02-2020

Answer:

11 neutrons

Explanation:

Mass no. = 20

atomic no. = 9

no. of neutrons = mass number - atomic number

= 20 - 9

= 11 neutrons

Answer Link

Otras preguntas

help me plz 10 points

What are the six external parts of a computer system? Which are input devices and which are output devices?

A school is having a fundraiser. Band members are selling coupon books. Each book sold will earn them $10. For every 5 books they sell, they'll get $12.50. A. I

Which organ mixes sperm and semen and leads them out of the penis?

A ____________ economy is operated solely by a central authority, such as the officials or leaders of society? A. Market B. Mixed C. Traditional D. Command

is 3/8 is greater than,less than,or equal to 4/6

In the phrase grassy slope the adjective answers the question

How can symbols and absolute value help you to order sets of integers

If the perimeter of a square is 40 mm how long is each side of the square

Jake cuts a length of 1,12 from a 3-meter board.how long is the board now ?