danny6718 danny6718

16-01-2018
Chemistry

contestada

What is the total number of protons in the nucleus of calcium -42?

Respuesta :

skylajohnston skylajohnston

25-01-2018

Since the atomic number of calcium is 20. The number of protons is also 20.

Answer Link

Otras preguntas

A characteristic is a feature that helps to identify something. How would you describe a characteristic of a good movie or book?

The art teacher bought 19 sketchbooks for $2.98 per book. What equation can be used to find the total cost of the sketchbooks?

5. Simplify: 2/5 +3/7+(-6/5)+ (-13/7)

Which phrase describes the linear relationship between the values of x and y shown in the table? x l y -3 l 9 0 l 0 3 l -9 A. y is 3 times x B. x is 6 more

Which of these is equal to .0625 ?? a. 4 ^ -15 b. 1 / 4^15 c. 16 ^ -2 d. (4 ^ -1) ^ 2 Help please!! I redid my assignment 3 times, and I still didn't get it c

Enter the missing values in the area model for multiplication below. 5 x 35 30 + 5 25 try

Need help with correcting: I needed to answer this sentence into spanish. My teacher has returned the assignment about 10 times and I give up :) 6. Clean the ho

HELP! 11. When you multiply two decimals less than 1, how does the product compare to the factors? Illustrate with an example. the ctarting line there are wate

Which of these sentences is true with respect to species?

find two number nearest to 8888888 which are exactly divisible by 2915