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

Jenny is learning about the importance of the ozone layer. She was upset to know that there is a depletion of the ozone layer and human activities are adding to

in a Lewis diagram for methane, which atom or atoms is outside

Miguel's manager has asked him for the details about what his department spent for a three-year project. Miguel should _____. 1write a long e-mail about the ex

which is not on the line with equation 7 y + 2 equals 3x take away 5(2,-1/7)(3,-2/7)(0,-1)(1,-4/7)(-1-10/7)

please help w/ this question image attached

Since in French, all adjectives must agree in number and gender, one adjective can have up to ______ forms. one two three four five

Can you show me the steps for a basic algebra problem?

A student answered 86 problems on a test correctly and received a grade 98%. How many problems were on the test, if all the problems were worth the same number

This is for suffixes and prefixes 1. real (not real) 2. approve (to turn down; to vote against; to oppose) 3. apply (to apply wrongly) 4. caution (to warn ah

Many antacids contain solid calcium carbonate. Explain how antacids with calcium carbonate function.