An isotope of yttrium has 39 protons and 59 neutrons. what is the atomic mass of that isotope?

Question

03-11-2017
Chemistry

contestada

An isotope of yttrium has 39 protons and 59 neutrons. what is the atomic mass of that isotope?

Respuesta :

Otras preguntas

round this number 3.899 to the nearest hundredth

The perimeter of a parallelogram is 46in. If the length of one side is 14in., what is the length of a side adjacent to it?

Why is it necessary to use the same restriction enzyme to cut 2 pieces of DNA that are to be joined together?

What is Neons group and periodic number?

If, 2=5 3=10 4=17 5=??

of the400 doctors who attended a conference, 240 practiced family medicine and 130 were from countries outside the United States. One-third of the family medici

If, 2=5 3=10 4=17 5=??

of the400 doctors who attended a conference, 240 practiced family medicine and 130 were from countries outside the United States. One-third of the family medici

ahmedishaal ahmedishaal · Answer 1 · 2017-11-13T13:28:37+01:00

ahmedishaal ahmedishaal

13-11-2017

we can define atomic mass the total of number of protons and number of neutrons in an atom or isotope.
So when an isotope of yttrium has 39 protons and 59 neutrons, its atomic mass is equal to;
number of protons + number of neutrons = 39 + 59 = 98

Answer Link