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Yuliya22 [10]
4 years ago
8

In what form do elements such as hydrogen, nitrogen, and oxygen normally occur?

Chemistry
1 answer:
irakobra [83]4 years ago
4 0
<span>Hydrogen is formed as molecule containing two atoms, just as nitrogen, and oxygen </span><span />
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8. Build a neutral lithium atom.
choli [55]

Answer:

Remove 1 electron

Explanation:

In the atom of each element, there are three subatomic particles viz: proton, neutron and electron. The number of proton (positively charged) and electron (negatively charged) determines the charge of that element. The more the proton, the more positively charged an ion is and vice versa for electron.

According to this question, a neutral atom of lithium (Li) with atomic no. 3 is given i.e. a lithium atom with charge 0. To make the lithium atom's charge change to +1, ONE ELECTRON MUST BE REMOVED OR LOST.

Note that, the proton number (atomic number) of an element does not change, rather the electron number changes in relation to the no. of protons.

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3 years ago
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1.Nuclear charge decreases as the atomic number increases.Immersive Reader
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1.Nuclear charge decreases as the atomic number increases.Immersive Reader

Answer - True

2.In alkali metals, the atomic radius of potassium is greater than

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3.While moving across the periodic table from left to right there is an increase in atomic radius.

Answer - False

4.When moving from gold to lead, the atomic radius increases.

Answer - True

5.The picometer is the unit used to measure atomic radii.

Answer - True

6.Which of the following is larger in atomic size?

Answer - Boron

7.Chlorine has a larger atomic radius than fluorine.

Answer - True

8.Atomic size increases across a period.

Answer - False

9.The atomic radius of a nitrogen atom is 70 pm. What is the distance between the nuclei of two bonded nitrogen atoms in a N2 molecule

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10.Arrange the following atoms in order of decreasing atomic radius:

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<em><u>Thanks for joining brainly community</u></em><em><u>.</u></em>

6 0
3 years ago
Why is there no reaction between copper and sodium chloride
ale4655 [162]

Answer:

If the solution is not in contact with air, nothing will happen. If the solution is in contact with air, it will be not a reaction between copper, water and sodium chloride..

in the end there will be no reaction

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3 years ago
When a substance is heated, what causes its properties to change?
hoa [83]

The molecules vibrate when the substance is heated, and the shape of the substance begins to form a different shape. For example: when you hear up metal it will melt becuase its molecules are changing and moving.

8 0
3 years ago
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