ChibiNyan ChibiNyan

15-05-2022
Chemistry

contestada

An atom was observed with +3 charge, n = 38, and e = 28. What is the mass number of the atom?

A. 66
B. 69
C. 72
D. 63

Respuesta :

Аноним Аноним

15-05-2022

Answer: 66

Explanation: To find the mass number you would have to add the number of protons and the number of neutrons.

Answer Link

Otras preguntas

someone help please i don’t want to fail math

Which symbol correctly compares the two angle measures? pi/4 radians_____30° A. < O B. > C. = I don't know the answer and thats my guess :,)

is Egypt a developing or developed country and why?

Can someone please give me the (Answers) to this? ... please ...

(please help) how many lines of symmetry does the figure have ? type the number only

You have at most $10 to spend on notebooks and markers. Markers cost $1 each, and notebooks cost $1.25 each. You want to buy at least 5 items. Write an inequali

HELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPP

She speak the language very—

Describe how glacier mice are complete ecosystems, even though they are tiny.

Josh and Adelina are staff members for a political candidate. They are considering hiring callers who will call voters and ask for donations. Josh and Adelina d