Helpp chemistry ..........
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So, half of 96 is 48
half of 48 is 24
half of 24 is 12
half of 12 is 6
96->48->24->12->6
You count how many arrows (->) there is.
Which is 4
Then you use the 12 minutes the question gave you to do:
12 divided by 4
= 3
So, one half-life (Or the time it takes for the radioactive material's mass to decrease in half) is 3 minutes
and every 3 minutes it will decrease by half.
Related Questions
What is the three-dimensional shape of the molecule with this Lewis structure?
Magnesium chloride is a salt formed with ionic bonds between one magnesium ion and two chloride ions. Magnesium has two electrons in its outer shell and chlorine has seven electrons in its outer shell. How are the electrons transferred between these atoms?
HELP!!!!!! Multiple choiceDuring transmutation...A. the number of neutrons always decreases.B. the number of neutrons always increases.C. the number of protons always increases.D. the number of protons always decreases.
An equation that requires energy to run is..?endothermic.exothermic.kinetic.convective.
basic
neutral
a salt
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Answer:
no tengo la menor idea de que es
(3) the first ionization energy of the atoms
(4) the polarity of the bond between the two atoms
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Answer : The correct option is, (4)
Explanation :
- Electronegativity : It is a chemical property which measures the ability of an atom to attract an electrons towards itself.
- Electronegativity difference : The difference in the electronegativity of the two atoms determines their polarity.
If the electronegativity difference between the two atoms is zero then the molecule is non-polar.
If the electronegativity difference between the two atoms is non-zero then the molecule is polar.
Therefore, the electronegativity difference between the atoms in a molecule of HCl can be used to determine the polarity of the bond between the two atoms
The more important the difference in electronegativity is, the more polarized the bond is.
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(2) different molecular structures and different properties
(3) identical molecular structures and identical properties
(4) identical molecular structures and different properties
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Justification:
O₂(g) and O₃(g) are different forms of oxygen in gaseous state. That is what is called allotropes.
Allotropes are forms of the same element, in the same physical state (solid, liquid or gas), that have different structures and different properties.
O₂ (diatomic oxygen) and O₃ (ozone) are both gases at room temperature, but one molecule has 2 atoms and the other has 3 atoms. That make them different in structure and properties.
Another example of allotropes is graphite and diamonds.
Answer:
different molecular structures and different properties
Explanation:
The two forms of oxygen, O2(g) and O3(g) have different molecular structures and different properties
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In chromium-52 there are 28 neutrons, because 28 + 24 = 52.
In chromium-53 there are 29 neutrons, because 29 + 24 = 53
Remember the atomic number, identifies elements it is different for every element and it is the number of protons in that element. So by adding that to the number of neutrons you can get the mass number.
Final answer:
Chromium-50 has 26 neutrons, chromium-52 has 28 neutrons, and chromium-53 has 29 neutrons.
Explanation:
Chromium has an atomic number of 24, which means it has 24 protons. To determine the number of neutrons in each chromium isotope, subtract the atomic number from the mass number. For chromium-50, subtracting 24 from 50 gives you 26 neutrons. For chromium-52, subtracting 24 from 52 gives you 28 neutrons. And for chromium-53, subtracting 24 from 53 gives you 29 neutrons.
Learn more about Isotopes of Chromium here:
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