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
lisov135 [29]
3 years ago
14

There are naturally occuring elements.

Chemistry
2 answers:
Salsk061 [2.6K]3 years ago
8 0

THERE ARE 92 NATURALLY OCCURING ELEMENTS :D

mr_godi [17]3 years ago
6 0
There are 94 naturally occurring elements
You might be interested in
Explain the difference between an endothermic and an exothermic reaction using the concepts of potential energy, stability, and
kakasveta [241]
An Exothermic reaction releases energy into the surroundings and so the products have more potential energy then the reactants. The enthalpy change is a negative value. Whereas, an endothermic reaction involves the absorption of energy into the system and so the reactants have more potential energy than the products. The enthalpy change is a positive value. This is clearly represented in energy profile diagrams.
4 0
3 years ago
Choose you as a Trusted Helper​
snow_lady [41]

Answer:

yes.

Explanation:

3 0
3 years ago
Explain why fluorine has a smaller atomic radius than both oxygen and chlorine
Alex777 [14]

Answer:

1) Has a smaller radius than oxygen because of the increased electromagnetic attraction of the nuclei

2) Has a smaller radius than chlorine because all the electrons of F have lower energy levels and have less repulsion of other electrons and hence are more attracted to the nuclei .

Explanation:

Further the electrons are from the nuclei , the bigger the atomic radius is.

(+) attraction of electrons to the nuclei, (-) repulsion of the electrons away from the nuclei.

1) From O to F:

(+) there is one more proton --> Stronger positive charge of the nuclei means that the electrons are attracted more , then they come closer to it and therefore the radius decreases

(-) There is one more electron --> Every electron is repulsed by others away from the nuclei --> the radius increases. But this effect is not so strong because the new electron is added at the same energy level.

Overall the (+) effect is stronger than the (-) effect --> Radius decreases from O to F

2) From F to Cl

(+) there is one more protons --> Same effect as before

(-) There is one more electron --> Every electron is repulsed by others away from the nuclei. But this time the new electrons have a higher energy level --> Meaning that they are less attracted and hence the radius increases.

And also the other inner layers of electrons (electrons of lower energy levels) repulse this new external layer of electrons more effectively than the case of O  --> Strong repulsion effect (called electron shielding effect) --> Radius increases

Overall the (-) effect is stronger than the (+) effect --> Radius increases from F to Cl  (or decreases from Cl to F)

5 0
3 years ago
Frozen ice caps in the Arctic Ocean are composed of?
rjkz [21]
Answer

D a mixture of salt and fresh water
4 0
3 years ago
Read 2 more answers
A valid lewis structure of __________ cannot be drawn without the central atom violating the octet rule. pf5 pcl3 so3 ccl4 co2
lakkis [162]
The answer will be, so3 since s only need two electrons to complete its octet
8 0
2 years ago
Other questions:
  • Which 5.0-milliliter sample of NH3 will take the shape of and completely fill a closed 100.0-milliliter container?(1) NH3(s) (3)
    5·1 answer
  • Help<br><br> Give 3 examples nasa spinoffs
    14·1 answer
  • Consider the equation: 2NO(0) - N.04(). Using ONLY the information given by the equation which of the following
    5·2 answers
  • What might be useful for adding solids to a tube
    11·1 answer
  • 3. A Beer's law plot for Cu2+ was experimentally obtained. The slope of the Beer's law plot was 435 L/mol (with a y-intercept =
    7·1 answer
  • Please help me<br> 5. Where is potential energy decreasing?<br> А B C D
    11·2 answers
  • Oxygen is composed of three isotopes: oxygen-16, oxygen-17 and oxygen-18 and has an average atomic mass of 15.9982 amu. Oxygen-1
    12·1 answer
  • 1. Which of the following statements describe cations? Select all that apply.
    15·2 answers
  • The electron-domain geometry of a sulfur-centered compound is trigonal bipyramidal. The hybridization of the central sulfur atom
    6·1 answer
  • How many molecules of O₂ will be required to produce 28.8 g of water? 2H₂ + O₂ ---&gt; 2H₂O
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!