dcdmo02 dcdmo02
  • 21-10-2020
  • Physics
contestada

What is the mass number of an atom with five protons and seven neutrons

Respuesta :

16AddyA
16AddyA 16AddyA
  • 21-10-2020

Answer:

12

Explanation:

The number of electrons in an atom is always the same as the number of protons, so atoms are electrically neutral overall.

Atoms can lose or gain electrons. When they do, they form charged particles called ions:

if an atom loses one or more electrons, it becomes a positively charged ion

if an atom gains one or more electrons, it becomes a negatively charged ion

Hope this helps

Answer Link

Otras preguntas

Help!!! Please help me I need help on my homework!​
Any one know what to do
Explain what happens to the energy in a wave when a sound is louder.
Classify the carbohydrate tagatose by both the carbonyl group and the number of carbon atoms. D-tagatose is sugar with six carbon atoms. The Fischer projection
should there be cameras in school why or why not ​
9. A garden has two circles. 1 big circle with sunflowers. 1 smaller circle with a radius of 6yd. Distance between the outside of the smaller circle to the end
Which two formulas are used to calculate potential and kinetic energy?
The number of DVD's sold at Fry's Electronics in a month was 920 and the number of DVD's sold decreased by 12 per month. The number of Blu-ray discs sold at Fry
$80 decreased by 20%
Function 2 {(0,5), (4, 5), (8,5), (12,5)} O Linear Not linear