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

weston is purchasing a new car that costs $18,000. he will also pay $900 in taxes on this car. what is the tax rate, expressed as a precent?

HELP PLEASE!! ASAP HURRY PLEASE (NO LINKS)

Help Me Please I’m Give You Brainiest

The Quick Search capability is found on which control? Database query Backstage view Record navigator File management

Replication is said to be semi-conservative. What does this mean about the chain being made? Half is_______________________________, the other half is_________

help me with this one too please help me I'll be grateful for that

The National Convention is considered to be the "voice" of a political party because: a. it is used as a recruitment tool for new party c. it is where the presi

Point M is located at (4,6) on a coordinate grid. Point M is translated 8 units to the left and 9 units down to create point M’ Which measurement is closest to

favorecer la supervivencia de especies amenazadas es una ventaja de implementar en nuestros hábitos una “Nutrición sostenible”

Which is these would have the biggest positive impact on Australia's economy