kathompson22 kathompson22

09-09-2020
Chemistry

contestada

An atom has a mass number of 9 and 5 neutrons. What is its atomic number?
O A. 19
B. 14
C. 11
D. 4

Respuesta :

ealowonleeaglet ealowonleeaglet

15-09-2020

Answer:

D.4

Explanation:

Number of neutron= mass number - atomic number

where; d no of neutron is 5

d mass no is 9

atomic number be x

5=9-x

x=9-5

x=4

Answer Link

SauceyJae11 SauceyJae11

12-07-2022

Answer: B 4

Explanation:approved

Answer Link

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