1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sineoko [7]
3 years ago
15

Name three radioactive elements

Chemistry
1 answer:
mote1985 [20]3 years ago
3 0
<span>Technetium (TC)- Transition metal.Promethium (Pm)- Rare earth metal.<span>Polonium (Po)- Metalliod.
</span></span><span>

Radioactivity tracers,</span>fission products,<span>controls fission reactions

</span><span>Isotopes are variants of a particular chemical element which differ in neutron number. All isotopes of a given element have the same number of protons in each atom.
</span>

For example<span>, the </span>half-life<span> of a radioactive substance is the amount of time it takes for </span>half<span> of its atoms to decay, and the </span>half-life<span> of a drug is the amount of time it takes before </span>half<span> of the active elements are either eliminated or broken down by the body.</span>

You might be interested in
Atoms will combine with each in order to become more chemically stable. Compounds are formed between two atoms that have.
adoni [48]

Atoms will combine with each in order to become more chemically stable  by sharing electron and Compounds are formed between two atoms that have chemical bond that links them together.

In order for molecules and crystals to form, atoms or ions must maintain a long-lasting attraction to one another. Ionic and covalent bonds are formed by the sharing of electrons, while ionic bonds are formed by the electrostatic attraction between two oppositely charged ions. There are "strong bonds" or "primary bonds" like covalent, ionic, and metallic bonds as well as "weak bonds" or "secondary bonds" like dipole-dipole interactions, the London dispersion force, and hydrogen bonding. The strength of chemical bonds varies greatly. By sharing or transferring electrons between the involved atoms, strong chemical bonds are created.

Since opposing electric charges attract, the positively charged protons inside a nucleus and the negatively charged electrons that surround it are drawn to one another. Placing an electron between them

Learn more about chemical bond here:

brainly.com/question/12907148

#SPJ4

7 0
2 years ago
kepler's first law explains that the sun is the focus of our solar system, and that _____. the orbit of a planet around the sun
alexgriva [62]
Kepler's first law explains that the sun is the focus of our solar system, and that A. <span>the orbit of a planet around the sun is an ellipse. Kepler proved that the orbit of the sun is an elliptical path and is used to derive the motion of the satellites and space vehicles today.</span>
5 0
3 years ago
Read 2 more answers
Which of the following most likely happens when thermal energy is removed from a chemical reaction? Rate of reaction becomes fas
3241004551 [841]
If you remove thermal heat from the reaction the reaction will slow down.  meaning that there will be fewer collisions occurring between the particles.
<span />
5 0
3 years ago
Read 2 more answers
Help me please I am stuck
azamat
BOBERT don’t u dare write a whole paragraph cause no one has time to read all that rn xoxo
3 0
4 years ago
Read 2 more answers
Which of these are chemical changes??
Vedmedyk [2.9K]
Mud dries and changes to dust. A match stick turns to ash while burning. stomach acids dessolving pizza. grape juice fermenting into wine. an iron pipe rusting. when in doubt if something is chemical or physical, know that physical changes can be state changes like condensation, melting, evaporation, freezing, etc. If a leaf is cut up, it is still a leaf, no matter how many times you cut it. if whats happening is changing what it is made of its a chemical change. hope this helped :)
6 0
3 years ago
Other questions:
  • What is adaptive radiation?
    5·2 answers
  • What substance cannot be decomposed by physical or chemical means?
    11·1 answer
  • The pH of a neutral solution is below 7 above 7 7 7.5
    9·1 answer
  • Which type of metal did Rutherford shoot alpha particles into?
    9·2 answers
  • Of the​ rock's original​ uranium-235 remains. how old is the​ rock
    9·1 answer
  • What is thermal energy transfer?
    10·2 answers
  • A mixture consisting of 0.250 M N2(g) and 0.500 M H2(g) reaches equilibrium accordin pavlovic (rp32269) – Homework 2 – campion –
    12·1 answer
  • Which statement accurately describes a P wave?
    11·1 answer
  • When Jorge looks at the Moon from Earth, he sees different phases of the Moon depending on the time of the month he observes the
    6·1 answer
  • What is the mass in grams of 1.204x10^24 atoms of carbon
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!