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Crazy boy [7]
3 years ago
14

Is tantalum radioactive?

Chemistry
1 answer:
Slav-nsk [51]3 years ago
7 0
There are certain processes in nature that produce many of these radioactive<span>isotopes. For instance, some </span>radioactive<span> nitrogen is produced in the atmosphere when high energy cosmic radiation from the sun hits the earth. Other </span>radioactive<span>isotopes are only available by artificial production.  good luck</span>
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The diagram below shows the different phase transitions that occur in matter. Three bars are shown labeled Solid, Liquid, and Ga
Sati [7]

Answer:

Molecules are speeding up during boiling

Explanation:

According to the kinetic theory of matter, matter exists in three states; solid, liquid and gas. In the solid state, the molecules of a substance are in fixed positions, the can only vibrate but can not translate. In the liquid state, the molecules acquire a greater degree of freedom and can translate in addition to vibration and rotation. In a gas the molecules are infinitely free and translate at high velocities.

Arrow 1 shows a phase change from liquid to gas. This occurs during boiling. This phase change is possible because the liquid molecules acquire energy in the form of heat supplied during boiling thereby making the molecules of the liquid to speed up their motion and escape the liquid surface as vapour.

4 0
3 years ago
Which subatomic particle has negligible mass and travels around outside the nucleus?
nikdorinn [45]
Electrons travel around the nucleus
6 0
3 years ago
Is SiO2 Polar or Non-polar?
Annette [7]
The answer is SiO2 is Nonpolar.
7 0
3 years ago
Read 2 more answers
The electron configuration of an element is shown below.
gayaneshka [121]

Answer:it is in group 7

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5 0
2 years ago
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Which of the following are characteristics of ionic
Margarita [4]

Answer:

  • have high melting and boiling points
  • are hard
  • are good conductors of electricity when  dissolved in water

Explanation:

Ionic compounds are compounds that are formed between a metal and non-metal with a significant electronegativity difference. The metals transfers their electrons to the non-metals and the electrostatic attraction of the ions brings about the bonding that forms the compound.

Ionic compounds are diverse in nature and form.

Here are some of their properties:

  • They are usually hard solids with a high melting point or liquids with high boiling points
  • They are soluble in water and non-soluble in non-polar solvents
  • They are able to conduct electricity in molten form.
  • They undergo very fast reaction in aqueous solutions.
6 0
3 years ago
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