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

If the given wave has a frequency of 100 Hz, what frequency will the sixth harmonic have?

Which rectangle will have the largest area? l = 5 cm, w = 4 cm l = 4 cm, w = 6 cm l = 4 cm, w = 7 cm l = 5 cm, w = 5 cm

90 is 50% of what number

Helpppppppppppppoppppp

What is the value of x in this equation?-4x+8 = 42Use the bubbles in the answer section to mark your answer.

The average power dissipated by a resistor connected to a sinusoidal emf is 5.0 W. a) What is Pavg if the resistance R is doubled? Pavg=IR2R Pavg=IR22R ∴=IR2

arrange the steps of a G-protein signal transduction in the order that they occur.a. The G protein dissociates from the receptor.b. The G protein activates an e

A country’s population in 1992 was 50 million. In 2992 it was 53 million. Estimate the population in 2010 using the exponential growth formula. Round your answe

solve....... [tex]5 (2) x^{2} - 6[/tex]

This continent is the second largest. It’s widely regarded man because the oldest human bones on record have been found there