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mina [271]
3 years ago
8

Why do nonmetals tend to gain electrons to form negative ions?

Chemistry
1 answer:
kompoz [17]3 years ago
8 0

Answer:

they gain the few electrons they need to form full octets

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Please help me there is 19 questions
cupoosta [38]

Answer:

1. Hubble

2.Aristarchus

3.Galileo

4.Aristotle

5.Kepler

6.Jupiter

7.Mercury

8.Uranus

9.Venus

10.Earth

11. Jupiter and Mars

12. sun

13.D

14. Saturn

15.Gas giants

16.Kuiper Belt and Ceres,Pluto,eris and haumea.

17.pluto

18.Ptolemy's model

19.meteor- a small body of matter from the outer surface that enters the earth's atmosphere.

meteoroid- a small body moving in the solar system that would become a meteor if it enters the earth's atmosphere.

meteorite- a piece of rock or metal that has fallen to the earth's surface from outer space as a meteor.

the relationship is the diagram I drew at the top.

hope this was helpful

6 0
3 years ago
What is the formula of a compound formed between iodine (I) and calcium (Ca)?
Nadya [2.5K]
Calcium iodide (chemical formula <span>CaI2</span>)
7 0
3 years ago
Read 2 more answers
How can you prove copper is a catalyst?
jolli1 [7]
There is no way to know which reaction requires which catalyst. However, if you apply copper to a reaction where it does act as a catalyst, the rate of reaction will be much faster as it lowers the activation energy for successful collisions. 
3 0
3 years ago
How are half life and radioactive decay related
hoa [83]

Answer : Half life and radioactive decay are inversely proportional to each other.

Explanation :

The mathematic relationship between the half-life and radioactive decay :

N=N_oe^{-\lambda t}              ................(1)

where,

N = number of radioactive atoms at time, t

N_o = number of radioactive atoms at the beginning when time is zero

e = Euler's constant = 2.17828

t = time

\lambda = decay rate

when t=t_{1/2} then the number of radioactive decay become half of the initial decay atom i.e N=\frac{N_o}{2}.

Now substituting these conditions in above equation (1), we get

\frac{N_o}{2}=N_oe^{-\lambda t_{1/2}}

By rearranging the terms, we get

\frac{1}{2}=e^{-\lambda t_{1/2}}

Now taking natural log on both side,

ln(\frac{1}{2})=-\lambda \times t_{1/2}

By rearranging the terms, we get

t_{1/2}=\frac{0.693}{\lambda}

This is the relationship between the half-life and radioactive decay.

Hence, from this we conclude that the Half life and radioactive decay are inversely proportional to each other. That means faster the decay, shorter the half-life.

3 0
3 years ago
Solar energy received by the Earth's surface causes the Earth's surface to heat up during the day. Which of the following heat t
serg [7]

A. radiation

Explanation:

The heat transfer mechanism that causes the surface of the earth to gain heat is  by radiation.

Electromagnetic radiation is able to cause the heating of the surface by radiation.

Radiation is one of the methods of heat transfer the does not involve any particle.

The surface of the earth absorb some of the radiation and it causes them to warm up.

learn more:

Sun's energy brainly.com/question/1140127

#learnwithBrainly

8 0
3 years ago
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