basketball459 basketball459

10-12-2014
Chemistry

Answered

suppose that a newly discovered element called centium has three isotopes that occur in nature. these are centium-200, centium-203, and centium-209. assume that these isotopes occur in equal amounts in nature. what will be the average atomic mass of this element?

Answer :

Erudite1 Erudite1

19-10-2017

Since all the isotopes occur in the same amount, to find the average atomic mass of the element, add the three mass values together and divide the result by 3. That is,
Average atomic mass = [200 + 203 + 209] / 3 = 612 /3 = 204.
Thus, the average atomic mass of the element is 204.

Answer Link

Other Questions

In Microsoft Windows applications such as Word and Excel, the clipboard is used for which of the following:A. printingB. savingC. copyingD. enhancing

Realiza las siguientes divisiones:1) [tex]\( 525 \div 5 = C \)[/tex] [tex]\(\square\)[/tex] [tex]\( R \)[/tex] [tex]\(\square\)[/tex]2) [tex]\( 478 \div 2 = C \

Simplify the expression below:[tex]\[ \left(\frac{2n}{6n+4}\right)\left(\frac{3n+2}{3n-2}\right) \][/tex]What is the numerator of the simplified expression?A. 2

The table below shows the typical hours worked by employees at a company. A salaried employee makes [tex]\$ 78,000[/tex] per year. Hourly employees get paid [te

It is still customary in U.S. society for a bride to accept her husband's last name. What is the line of authority this represents?Select one:A. patrilinealB. m

A pentagon is transformed according to the rule [tex]R_{0,180^{\circ}}[/tex]. Which is another way to state the transformation?A. [tex]\((x, y) \rightarrow (-x,

The total cost (in dollars) of producing [tex]x[/tex] food processors is [tex]C(x) = 2100 + 70x - 0.4x^2[/tex].A. Find the exact cost of producing the 41st food

A line has the equation y = 4x 3. This line has slope

A light bounces off the surface of a metal cup and shines in Harold’s eyes. Which best describes what is happening to the light waves in this scenario? absorpt

If Hindu troops won a major battle against their enemies, whom would they praise for their guidance?A. BrahmaB. BuddhaC. ShivaD. Vishnu

Why did secretary of state Thomas Jefferson criticize U.S policy towards france

a window shaped like a parallelogram has a area of 18 and 1 3rd square feet.the height of the window is 3 and 1 3rd.how long is the base of the window

What might scientists predict if the rovers find water on mars

find the length and width of a rectangle that has the given area and a maximum area. Perimeter: 80 meters

Let f(x) = 5x^3 + 7x^2 + 4x - 5. Write a function g that reflects f(x) across the y-axis.

Which statement correctly describes the effect of the Civil Rights Act of 1964? A. It provides equal protection under the law to citizens who were born outside

X +Y+Z=8 6X+Y+5Z=41 WHAT IS X & Y & Z ?

4. How many moles are in 54.0 grams of Silver? 54.0 g Ag x (108mol ag /1 g ag ) = 5,832 ag moles Ag (Use the gray boxes to insert the values for the conversion

From a deck of 52 cards, two cards are radomly drawn without replacement. Which expression represents the probability of drawing two hearts? A. 2/52 B. 13/52· 1

A class of 25 students had a vote. 24% voted on selection 'a'. 1/5 of the class voted on selection 'b'. And 0.56 voted on selection 'c'. How many of the student