hannnaamariiee4829 hannnaamariiee4829

03-11-2017
Chemistry

contestada

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

Respuesta :

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

Otras preguntas

Find m if the line y=mx−2 intersects y=x^2 in just one point.

The dividend policy must be formulated considering two basic objectives, namely ________. delaying the tax liability of the stockholder and information content

Why does photosynthetic rate decline when the CO2 level is reduced?

A candle is 4 1/4 in tall it will melt 1/8 of an inch every hour it burns. how many hours will the candle burn? Helpppp

A primary course for getting specific information on a particular bill is?

In a scale model of the Solar System, if the Sun is represented by a ball with a diameter of about 8 inches, about how far away would Neptune be?

Given that tan 0=-4/7 , and 270 degrees <0<360 degrees , what is the exact value of sec0?

What roles did African American men play during ww2 A communications B navy C pilots D marines

find the rule and the graph of the function whose graph can be obtained by preforming the translation 3 units right and 4 units up on the parent function f(x)=x

Which factor contributed to the outbreak of the Russian Revolution? Question 1 options: Russia's conflict with Nazi Germany Russia's involvement in World War I