Moisesp345
Moisesp345
02-10-2020
Chemistry
contestada
What is the mass number of the atom shown?
Respuesta :
legoshes
legoshes
02-10-2020
Answer:
21
Explanation:
Formula;
Mass number = number of protons + number of neutrons
= 9 + 12
= 21
Answer Link
VER TODAS LAS RESPUESTAS ( 64+ )
Otras preguntas
Which point on the number line represents two and one-half degrees below zero? A. point A B. point B C. point C D. point D
Bonus: Russian rulers were called czars and German rulers were called kaisers. These two words came from a title used by Roman emperors. What is that lite?
Which of the following would be a factor in good sleep hygiene? a. Eat a small meal ten minutes before bedtime. B. Go to bed whenever you feel like it. C. Go to
Who owned all the land and industry in Russia after the Soviet Union Collapsed. Please give a proper answer or I will report you. Thank you!
This isn't a question just needed to spend a certain amount of points to get a certain amount of points so i'm satisfied good day
(6,−3) after a dilation by a scale factor of \frac{1}{3} 3 1 centered at the origin?
which of these is a solution to the equation 1/8=2/5times x
write a summary of each paragraph. hurry!!
On a certain hot summer's day, 645 people used the public swimming pool. The daily prices are $1.75 for children and $2.50 for adults. The receipts for admissi
I really need help:( In the photo do exercise 5
