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Tamiku [17]
3 years ago
7

A potassium isotope has a half-life of 1.25 billion years. Given that scientists estimate Earth's age to be 4.6 billion years, w

hat is the most likely percentage of parent to daughter isotopes of this element currently existing on Earth?
Less than 10 percent
25 percent
50 percent
More than 75 percent
Chemistry
1 answer:
dmitriy555 [2]3 years ago
8 0

Answer:

More than 75%

Explanation:

2.5billion -> 1.25Billion

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Read the description of how ancient metalworkers improved their iron. Then identify the solute and solvent by filling in the bla
slega [8]

Answer:iron and carbon

Explanation:I took the test it’s iron and carbon

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4 years ago
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If you can answer as many of these as possible that would be great, will give thanks, 5 stars, and brainliest :)
alexandr1967 [171]

Answer:

  1. The nucleus of the atom as suggested by "nuclear" chemistry.
  2. Radioactive element are generally very large due to both their high number of protons, neutrons, and electrons.
  3. An excessive amount of protons or neutrons.
  4. Periodic table, table O, and table N.
  5. Personal opinion question.
  6. The atomic number.
  7. It represents the number of protons, and can also represent the number of electrons in a neutral atom (an atom with no charge).
  8. Protons ---- element.
  9. Random, self-generated.
  10. Gamma radiation is the only thing on table O that is mass less. Close to being the same is Beta particles which have almost no mass.
  11. Neutrons and Gamma radiation.
  12. Gamma radiation.
  13. Electrons and Beta particles.
  14. To turn one element into the isotope of another. Yes, I believe it is aptly named because you are changing the identity of the element.
  15. The number of protons because they are what define the identity of an element.

Goodluck!

3 0
3 years ago
What is the light transmission of chlorine?
nydimaria [60]

Explanation:

The Absorption of Light by Chlorine, Bromine and their Gaseous Mixtures

4 0
3 years ago
Which phase of matter has molecules with the highest kinetic energy?
WITCHER [35]

Gases has highest Kinetic energy as kinetic energy is the movement of molecules between the intermolecular spaces.

Please please try to answer my question as I am a forgeiner from India

4 0
4 years ago
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What is the ore of aluminium
Amiraneli [1.4K]

Atoms of different element can not have same atomic number because only same type of atoms combine to form element. Atoms belonging to different element can have different atomic number. Therefore, the ore of aluminum is Bauxite.

<h3>What is element?</h3>

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

Two or more than two atoms with different physical or chemical properties can not combine together to form an element.  Ore is a naturally occurring solid material from which a metal or valuable mineral can be extracted profitably. The ore of aluminum is Bauxite.

Therefore, the ore of aluminum is Bauxite.

To know more about element, here:

brainly.com/question/8460633

#SPJ1

6 0
1 year ago
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