Chemistry, 10.10.2019 04:10 ThePotato381

Acertain element exists as two different isotopes. 92.4% of its atoms have a mass of 7.016 amu and 7.60% of its atoms have a mass of 6.015 amu. what is the average atomic mass of this element?

a
6.52 amu
b
6.09 amu
c
6.94 amu
d
694 amu
answer asap

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 12:00, Alexislol7908

From the options provided for each element below, choose the properties that it may have based on its location in the periodic table fluorine (f): highly reactive nonmetal shiny a conductor

Answers: 1

continue

Chemistry, 22.06.2019 18:00, liddopiink1

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

Answers: 3

continue

Chemistry, 22.06.2019 21:00, cxttiemsp021

The rate constant for the reaction below is 6.2 x 10−5 mol l−1 s −1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?

Answers: 1

continue

Chemistry, 23.06.2019 05:30, hongkongbrat6840

Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.

Answers: 2

continue

You know the right answer?

Acertain element exists as two different isotopes. 92.4% of its atoms have a mass of 7.016 amu and 7...