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Sergio039 [100]
3 years ago
14

How does a scientist know where on the periodic table to put a newly discovered element?

Chemistry
1 answer:
Paul [167]3 years ago
6 0
To put an element on the periodic table you need to get the approval of many people and it could take a long time. they put it at the next number and currently there are 118 elements, if 119 was discovered it would be put with the elements it’s most like right after the highest number in that section of the periodic table. Non metals, Akali Metals, Transition Metals, Rare Earth Elements, Noble gases, Halogens, e.t.c. are all different sections on the periodic table.
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Which of the following is considered a drawback to using wind energy as a source of power?
Olin [163]

Answer:

Option (3)

Explanation:

Wind energy is directly derived from the wind. In the places where wind blowing is quite frequent, there wind mills are being set up, and the turbines in it rotates due to the prevailing wind. Due to this continuous motion of turbines, it collects the wind energy and it is being transferred into electrical energy.

It is cost-effective and does not produce any kind of pollution and is completely a renewable energy, that it can generated again and again.

It does have certain drawbacks also, because <u>the area may sometime do not experience constant wind, due to which it cannot store energy. So frequent wind blowing areas are the best place to set up windmills</u>.

Thus, the correct answer is option (3)

5 0
3 years ago
About 10-15% of all galaxies are which shape?
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Your awnser would be B
4 0
3 years ago
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3 years ago
When 1 mol of Zn reacts with 0.8 mol of HCI, which of the following will be true?
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Answer:

Zn is the excess reagent

Explanation:

4 0
4 years ago
Q#1 Give a combination of four quantum numbers that could be assigned to an electron occupying a 5p orbital.
Gnesinka [82]

Answer:

For an electron in 5p orbital

5,1,-1,+1/2

For an electron in 6d orbital

6,2,-2,+1/2

Explanation:

The term quantum numbers refers to a set of values that can be used to determine the region in space where it is likely to find an electron. This region in space where there is a high probability of finding an electron is known as an atomic orbital. An atomic orbital is actually a wave function according to the Schrödinger wave equation.

There are four quantum numbers used in describing an atomic orbital: the principal quantum number (n), the orbital angular momentum quantum number also called azimuthal or subsidiary quantum number (l), the magnetic quantum number (ml), and the electron spin quantum number (ms).

For a 5p orbital;

n= 5, l= 1, ml= -1,0,1 ms= +1/2 or -1/2

For 6d orbital;

n= 6, l= 2, ml= -2,-1,0,1,2, ms= +1/2 or -1/2

Since we are requested to use a four quantum number description that can be assigned to an electron in these levels;

For an electron in 5p orbital

5,1,-1,+1/2

For an electron in 6d orbital

6,2,-2,+1/2

3 0
3 years ago
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