<span>b. Representative electrons</span>

Firstly it is best to describe the shape and structure of an atom, an atom's system and structure is like of the solar planet, the heliocentric view where the sun is the neutrons and protons and the planets are the electrons. Moreover, the electrons are outside these neutrons and protons surrounding the entire system of its atomic structure. Its movement is like of a planet.

An energy level also known as electron shell, or just shell is a location around an atom where electrons with a specific energy value, or quantum number may be found.

4 0

4 years ago

The obstacle course was very challenging. Three out of every 8 contestants fell in the mud at the beginning and gave up. Then 1

Firlakuza [10]

Answer:

35%

Explanation:

Let us assume that the number of contestants = N.

The fractions are given as --

"3 out of 8"

"1 out of 5"

"2 out of 9"

"1 out of 10"

Hence the no. of contestants in the competitions is in the multiples of 8, 5, 9 and 10.

Therefore the least common multiple of the numbers 8, 5, 9 and 10 is 360.

Therefore the number of contestants should be a multiple of 360.

Now, let N = 360 p

Firstly, 3 out of 8 students fell and gave up and so remaining 5 out of 8 passed. That is (5/8) x 360 p = 225 p passed.

Secondly, 1 out of 5 could not climb. Therefore, remaining 4 out of 5 climbed and passed. That is (4/5) x 225 p = 180 p passed.

Thirdly, 2 out of 9 dropped out. Thus remaining 7 out of 9 passed. That is (7/9) x 180 p = 140 p passed.

Fourthly, 1 out of 10 could not jumped and quit. Thus remaining 9 out of 10 passed. Therefore, (9/10) x 140 p = 126 p passed.

Therefore now fraction who finished is = 126 p / 360 p

= 126 / 360

= 21 / 60

= 7/20

Thus the fraction that finished is 7 / 20

Therefore percentage that finished is (7/20) x 100 = 35%

Thus 35% of the contestant made to the finish line.

6 0

3 years ago

The Central Intelligence Agency operates as ______.

Ket [755]

I think it is D you can look at the cia's website under what we do for more info. I think i said that they look at foreign countries.

5 0

4 years ago

Read 2 more answers

The United States began as more of a (3 points) a market economy but grew more mixed as government added laws and regulations b

Alenkinab [10]

Answer: I hope this helps.

Explanation:

The U.S As time passed, rules and policies were introduced that favored hybrid economies over markets, the U.S. underwent a process of increasingly complex and radical expansion. It was the principle that leads to the creation of free markets, which, where commodities could be voluntarily traded and personal property could be secured in a little or not at all. The hybrid economy provides for the preservation of private property but often calls for the active participation of states in business operations that serve the greater interest of the public.

7 0

3 years ago

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