Muchumuchu Muchumuchu

04-01-2020
Chemistry

contestada

The symbol Ca-40 denotes that

A. a calcium atom contains 40 protons
B. a calcium atom contains 40 electrons
C. a calcium atom contains 40 neutrons
D. a calcium atom has a mass number of 40

Respuesta :

theofficialkoolplug theofficialkoolplug

04-01-2020

D. A calcium atom has mass of 40

Answer Link

Otras preguntas

Why did the peaceful relationship with New England Indians change

4. Sofia is buying lace to sew around the edge of a round tablecloth. The radius of the tablecloth is 24 feet. If lace is sold by the yard, what's the smallest

5pts. Domain and range

Leroy prepared 14 pounds of dough after working 4 hours. What is the unit rate?

Which of the following is the compression of the wave? wwwm A. A and B C. C B B. B D. D

SOMEONE PLS HELP!! Pls try to explain your answer, you are trying to solve X and Y

how many country in te world

'Measurement of quality of life is complex concept '. jistify

Which of the following statements must be true about a rectangle? The opposite angles of a rectangle are complementary. The diagonals of a rectangle are congrue

A rectangular vegetable garden will have a width that is 2 feet less than the length, and an area of 48 square feet. If x represents the length, then the length