brennabananas7431 brennabananas7431

03-10-2017
Chemistry

contestada

If the atomic number of an element is 9 and the mass number is 19, how many neutrons does the atom have?

Respuesta :

Аноним Аноним

05-10-2017

To find the number of neutrons.....

NEUTRONS = MASS NUMBER - ATOMIC NUMBER ( PROTONS)

NEUTRONS = 19 - 9

So this element has 10 neutrons

Answer Link

Otras preguntas

Expand the following question 3t(4t-1)

How is mitosis different from meiosis? A)Unlike meiosis, mitosis results in four haploid cells. B)Unlike meiosis, mitosis produces eggs and sperm. C)Un

What is the slope of the line shown?

What legeal issue complicates the use of AED to save lives?

Evaluate the function rule for the given rule. f(x)=5^x for x=2

Describe a real world problem situation that can be represented by the quotient of -85➗15

Which of the following is the main purpose of a human community? A. To meet needs through collective effort B. To analyze group behavior through observation C.

Can someone help me idk which one it is ?? A B C D

PLEASE HELP ME Which of the following is the correct graph of the compound inequality 4p + 1 > −7 or 6p + 3 < 33? (1 point) a number line with open c

Which of the following is most clearly a theme in the great gatsby? A. The poor must empower themselves B. One can never relive the past C. Myrtle cheats on he