Question: please help An unknown element X has the following isotopes; 44X(89.00% abundant ) and 44X(11.00% abundant ). What is the average atomic mass in amu

please help

An unknown element X has the following isotopes; 44X(89.00% abundant ) and 44X(11.00% abundant ). What is the average atomic mass in amu of X ? 140.5 amu 141.8 amu 140.2 amu 141.0 amu Question 3 (3 points) Convert 40.0C to Kelvin 104K233K9.70K313K Question 4 (3 points) How many valence electrons are in a neutral Nitrogen? 3

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Chemistry Questions!

An unknown element X has the following isotopes: X (89.00% abundant) and X(11.00% abundant). What is the average atomic mass in amu of X?

thanks for your help! An unknown element X has the following isotopes: 58(68.00% abundant ),60X(26.00% abundant ),62X(6.00% abundant ). What is the average atomic mass in amu of X

An unknown element X has the following isotopes: X (77.50% abundant), X (8.00% abundant), X (14.50% abundant). What is the average atomic mass in amu of X? ?

An unknown element X has the following isotopes: 58X (68.00% abundant), 0X (26.00% abundant), 2X (6.00% abundant). What is the average atomic mass in amu of X?

app.aktiv.com\ Question 4 of 5\ An unknown element x has the following isotopes: abundant, atomic mass =52.04a\\\\mu abundant, atomic mass =48.99a\\\\mu , and abundant, atomic mass =50.09 amu). What...

Please complete and submit the History of the Periodic Table Worksheet. Download History of the Periodic Table Worksheet. The PowerPoint in Unit 2 Resources can help you complete this task. Note: amu...

Need to identify this compound using information from these spectra. need to show my work too. please help asap Unknown 9 10D 50 D 4000 3000 2000 ISBO 1000 SDO NAVENUMBERT 606 634 483 4 33 10 3086...

all other options are remain the same, increase or decrease. please help! An unknown compound is suspected to be benzoic acid (mp 121-123 C). Complete the following statements. If the sample was...

Please help solve unknown interest rate for equation, but also please show how it would input into excel without hardcode so I understand the formula as that is what I am having trouble with

Please help!!! An unknown reaction was observed, and the following data were collected: Determine the activation energy for this reaction. Express your answer with the appropriate units. The rate...

In an introductory statistics course, the following weights are applied to determine each students overall grade for the course. Homework: 10% Labs: 10% Project 1: 5% Final Project: 20% Exam 1: 15%...

A fixed exchange rate creates exchange-rate stability. What is the primary disadvantage of a fixed exchange rate?

Explain how you would test for an increase in dividends by companies listed on the Stock Exchange of Mauritius.

3. 10 points]: TCP reliable data transfer protocol (a) The sender sends two packets, one with 15 bytes of data and the other with 30 bytes of data. The initial sequence number is 37 and the first...

Message Strategies: Marketing and Sales Messages [LO-4] Read the following message and (a) analyze the strengths and weaknesses of each sentence and (b) revise the document so that it follows this...

Being an avid gamer, he noticed a laptop in the far corner of the room that had the best graphics card installed.

Message Strategies: Persuasive Business Messages; Media Skills: Podcasting [LO-2], Chapter 6 To access this message, visit http://real-timeupdates.com/bce7, click on Student Assignments, and click on...