subject

Chemistry, 30.10.2019 09:31 alyssams1213

19. cerium is the most abundant rare earth metal. pure cerium ignites when
scratched by even a soft object. it has four known isotopes: "ce (atomic mass
= 135.907 amu), ce (atomic mass = 137.905 amu), 4°сe (atomic mass =
139.905 amu), and "ce (atomic mass = 141.909 amu). ce-140 and ce-142 are
fairly abundant. which is the more abundant isotope?

ansver

Answers: 2

Show answers

Another question on Chemistry

question

Chemistry, 22.06.2019 03:10

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

Answers: 2

question

Chemistry, 22.06.2019 12:00

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Answers: 1

question

Chemistry, 22.06.2019 12:00

An atom's configuration based on its number of electrons ends at 3p4. another atom has seven more electrons. starting at 3p, what is the remaining configuration? 3p63d34s2 3p43d54s2 3p64s23d3 3p44s23d

Answers: 3

question

Chemistry, 22.06.2019 14:30

Chemistry worksheet - i am not sure what they are asking for exactly?

Answers: 1

You know the right answer?

19. cerium is the most abundant rare earth metal. pure cerium ignites when
scratched by even a...

Questions

question

Biology, 14.03.2020 01:18

A biomedical engineer would like to reconstruct the arm of a boy who underwent amputation to treat a life-threatening infection. In designing the pros...

question

Business, 14.03.2020 01:19

Coca-Cola has collaborative arrangements whereby it produces concentrate that it sells to other companies to bottle its drinks. Which of the following...

question

Health, 14.03.2020 01:19

Please help asap, thank you!! Which percentage, when multiplied by the number that is calculated by subtracting a person's age by 220, det...

question

Mathematics, 14.03.2020 01:19

What is the area of a rectangle that has a base of 5 centimeters and a height of 2 centimeters...

question

Mathematics, 14.03.2020 01:19

Simon has $50 in his bank account. He saves $15 each week. How much money does Simon have in his bank account after 10 weeks? Use w to represent the n...

question

Business, 14.03.2020 01:19

Glenda runs a flower delivery service with six people. Quite recently, the business has started suffering and there has been an increase in the number...

question

Mathematics, 14.03.2020 01:19

The equation of the function h is h(x)=1/2(x-2)^2...

question

Physics, 14.03.2020 01:19

A cable supports a cylindrical beam at point B. For the given loading conditions, what type of supports, applied at point A, would improperly constrai...

question

Mathematics, 14.03.2020 01:19

Admission to a circus is $16 for adults and eight dollars for children right expression to find the total cost of three adult tickets and eight childr...

question

Mathematics, 14.03.2020 01:19

Edwin went to the store to 9 packs of gum. Each of them have 14 sticks of gum. Edwin will open each pack and will share them into 6 goodie bags. How m...

question

Business, 14.03.2020 01:19

Jamison Paints makes and sells paint to home improvement stores. Jamison's only plant can produce up to 12 million cans of paint per year. Current ann...

question

History, 14.03.2020 01:19

How did racial issues affect American domestic policy between 1876 through 1896...

question

Business, 14.03.2020 01:19

The recurring steps performed each reporting period, starting with analyzing and recording transactions in the journal and continuing through the post...

question

Physics, 14.03.2020 01:19

Power Plate Inc., a consumer electronics manufacturer, introduced a new solar cooker in the market. The team responsible for the successful launch of...

question

Business, 14.03.2020 01:20

On April 1, 2018, Shoemaker Corporation realizes that one of its main suppliers is having difficulty meeting delivery schedules, which is hurting Shoe...

question

English, 14.03.2020 01:20

Shawn is having trouble listening effectively in his advanced philosophy course. Usually he listens well in class, but the professor in this case pres...

question

English, 14.03.2020 01:20

How does the author reveal the narrator's perspective in Shania's Diary? by having Shania share her thoughts and feelings by describing how Shania’s f...

question

Biology, 14.03.2020 01:20

DNA markers can serve as a proxy for the genome and hence can be used in the identification of any organism or individual organism including humans. H...

question

Mathematics, 14.03.2020 01:21

Brainliest! You work at a a sandwich shop and your manager needs you to make sandwiches for a customer's company picnic. If each whole smoked turkey b...

question

Chemistry, 14.03.2020 01:21

Give an example of a substance changing temperature and what happens to the motion of molecules as the temperature changes?...

More questions: Chemistry Another questions

Questions on the website: 13722367