lilprincessttow6r6r lilprincessttow6r6r

25-01-2018
Chemistry

contestada

How many neutrons does element X have if its atomic number is 29 and its mass number is 99?

Respuesta :

Аноним Аноним

25-01-2018

number of neutrons = mass number - atomic number

= 99-29 = 70

Answer Link

Otras preguntas

What is equal representation?

What was Operation Rolling Thunder? a sustained bombing campaign against North Vietnam an offensive to show that North Vietnam could still fight a strategy to r

Which one of the following is the catalyst in a metabolic pathway? a. Carbohydrates b. Phosphate groups c. Enzymes

5/4-3/4 evaluate each expression

Torque can be calculated by multiplying the force (N) applied at 90∘ to the lever arm at a distance (m) from the pivot point (point of rotation), the compound S

Your friend spends most of his free time eating junk food and playing games on the computer. He has a very low energy level and many aches and pains. which way

Last summer, at Camp Okey-Fun-Okey, the ratio of the number of boy campers to the number of girl campers was 8:7. If there were a total of 195 campers, how man

Why did many Europeans want to sail to Japan, China, and India in the fifteenth century? a. There was no more room for people in Europe. b. Europe had run out

where might you look on the internet to find good scientific information about illness

the sum of a number b and 3 is greater than 8 and less then 12