An isotope has a charge of +2, an atomic number of 4, and a mass number of 10. How many neutrons does the isotope have?
a. 4
b. 10
d. 2
C. 6

7,24

step-by-step explanation:

i think the answer is d im not sure

df =

both have same length

the answer is option a you would get more money.it would be $250.

step-by-step explanation:

for option b 200/2=100=50% 100/2=50=25% 50/5=10=5% it would be $220