griseldadelgado351 griseldadelgado351

02-10-2020
Chemistry

contestada

how many neutrons does a calcium atom have if the mass number is 42

Respuesta :

jsoso102000 jsoso102000

02-10-2020

Answer:

22

Explanation:

calcium has 20 proteins

and given the mass number is 42.

mass number = protons + neutrons

42= 20+ n

n= 42-20

n= 22

Answer Link

Otras preguntas

The repeating pattern of a mineral’s particles forms a solid called a(n) a. crystal. b. element. c. compound. d. rock.

What makes you feel empowered in the workplace?

why do winds at the beach change direction between day and night?

which value is equivalent to 7.3% written as a decimal? A. 0.73 B. 73.0 C. O.0073 D. 0.073

A principal wants to send her top science students on a field trip to the state science center. T trip costs $250 for a bus and driver, plus $17.50 per student

transmission of electric signals through wire

Which word is most nearly opposite in meaning to righteous? a. honorable c. unethical b. immortal d. reliable

What is the equation of the line with a slope of -1/2 that passses through the points (6,6)?

how did the domestication of the camel help the devolopment of the silk road?

The _____________ is the contract that seals the deal when you buy a car. A. loan application B. warranty C. loan agreement D. sales agreement