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Snowcat [4.5K]
3 years ago
10

In this equation 2mg+o2=2mgo what is the subscript of the oxygen molecule

Chemistry
1 answer:
Umnica [9.8K]3 years ago
8 0

Answer:

The subscript of the O₂ molecule is the small “2” at the lower right-hand corner of the “O”.

Explanation:

A <em>subscript</em> is a letter or a number that is written below the line.

In chemistry, a subscript after an atomic symbol tells you <em>how many of those atoms</em> are in the unit.

Thus, the subscript in O₂ tells you that there are <em>two oxygen atom</em>s in a <em>molecule of oxygen</em>.

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Answer:

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Explanation:

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Aloiza [94]

Answer

The elements in increasing order of atomic radius: oxygen, carbon, aluminum, potassium

Explanation:

The distance from the center of the nucleus to the outermost shell of the electron is known as the atomic radius of an element. The atomic radius decreases rightward along each period (row) of the table due to the increase in effective nuclear charge (the charge of the nucleus equal to the number of protons). Across a period, electrons are added to the same energy level and the increasing number of protons causes the nucleus to exert more pull on these electrons, which makes the atomic radius smaller.  Atomic radius increases down each group (column) of the periodic table because of the addition of electrons to higher energy levels, which are further away from the nucleus and the pull of nucleus weakens. Another reason for the increase in atomic radius is the electron shielding effect, which is the reduction of the attractive force between a nucleus and its outer electrons due to the blocking effect of inner electrons

While moving from left to right in the second period, c arbon comes before  oxygen  and so oxygen will have a smaller atomic radius than  carbon. While moving down the periodic table, al uminum comes before  potassium even if they are not in the same period. So aluminum 's atomic radius will be smaller than that of  potassium  but bigger than that of  carbon  and  oxygen.

(hope that helps can i plz have brainlist it will make my day :D hehe)

8 0
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Ionic character of lih
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iragen [17]

Answer:

The last choice.

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It does not conduct electricity in any form.

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4 0
4 years ago
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