funwitfayy funwitfayy

03-09-2020
Chemistry

contestada

A atom has 20 electrons, 21 neutrons, and 20 protons. What is the atomic mass of the atom?

Respuesta :

poudelbinda8 poudelbinda8

12-09-2020

name= calcium

atomic mass= 40.078 atomic mass unit

no of protons= 20

no of electrons=20

Answer Link

Otras preguntas

Activists in the counterculture movement were successful at doing which of the following? weakening the Republican Party turning public opinion against the Viet

What is the sum of the positive integers k such that k/27 is greater than 2/3 and less than 8/9?

The 1862 battle at Antietam put an end to A. the military career of Stonewall Jackson. B. the Confederate threat to the Union capital. C. the Civil War’s early

TRUE OR FALSE? The Pope as the head of the Roman Catholic Church assumes power as an elective monarch by being selected by Church officials

After Charlemagne's death, his kingdom declined due to all of the following except a. Louis the Pious, his son, was weak and short sighted. c. Muslims, Slavs, a

In a week, 18 hens laid 54 eggs. What is the unit rate for eggs per hen?

how to find the equation of a line passesthrough (1,4) and is parallel to y=-4x-5

Can someone please help me!!

what is 33:60 as a decimal

how to find the equation of a line passesthrough (1,4) and is parallel to y=-4x-5