rachelfugere00 rachelfugere00
  • 03-04-2017
  • Physics
contestada

How many neutrons does element X have if its atomic number is 40 and its mass number is 160?

Respuesta :

dellaM dellaM
  • 03-04-2017
160-40 = 120 ................
Answer Link

Otras preguntas

What is the distance between-13 and 13 on a number line
The ratio of pears to plums is 4:3 respectively. If there are 24 pears, how many plums are there?
Read the following line. Mark the stressed and unstressed syllables by placing the accent mark ( ) over stressed syllables and the breve () over unstressed syl
Which is the correct way to write this phrase? (three weeks’ supply) (three weekses’ supply) (three weeks supply) (three week’s supply)
Also help with this
Help please!!!!!!!!!!!
can someone help with this question?
how do i do oder of operations
Percentages: Common Egg: 27.5% Common Egg: 27.5% Unique Egg: 17.5% Rare Egg: 7.5% Epic Egg: 15% Epic Egg: 4.0% Legendary Egg: 1% Legendary Egg: 0.0001% How many
Simplify: (−2)3 · (−2)4 A) (−2)12 B) (−2)7 C) 212 D) 27