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never [62]
3 years ago
8

What is the shortest half life

Chemistry
1 answer:
N76 [4]3 years ago
8 0

Answer:

Hey!

Your answer is element A

Explanation:

Using the graph, the element A's emission of radioactive particles ends approximately after 6 years...

A HALF-LIFE IS "HALF" OF THAT TIME PERIOD!

So if the radiation goes for 6 years the half-life is 6 divided by two which gives you 3 years!

The rest however have a longer half-life...

Because they all end at 14 yrs so their half-life in 7 years!

HOPE THIS HELPS!!

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Hope this helps :)

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4 years ago
Give two examples of elevation.
jasenka [17]

Answer:

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5 0
3 years ago
Find the number of atoms in 237g Cu (molar mass of Cu63.55g/mol)
MakcuM [25]
In order to find the amount of atoms you have to find the moles then multiply by Avogadro's Constant (L)

mol = \frac{MASS}{Molar Mass}
 
       = \frac{237 g}{63.55 g/mol}  

       
       =  3.73 mol

Number of atoms of Cu =  mol × L
                
                                      = 3.73 mol × (6.02 × 10²³)
                          
                                      = 2.245 × 10²⁴ atoms of copper


 
 


5 0
3 years ago
On a given day, the water vapor in the air is 2.5%. If the partial pressure of the vapor is 19.4 mm Hg, what is the atmospheric
erica [24]

Answer:775 mm Hg

Explanation:

5 0
3 years ago
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