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2 years ago

describe the trends in the atomic size, location energy and electrongavity from left to right across a period in periodic table

1 answer:

3 0

Atomic size decreases in a period but the ionization energy and electronegativity increases across a period.

<h3>Describe the trends in the atomic size, ionization energy and electronegativity?</h3>

Atomic radius decreases across a period because of nuclear charge increases whereas atomic radius of atoms generally increases from top to bottom within a group because there is again an increase in the positive nuclear charge.

Ionization energy increases when we move from left to right across an period and decreases from top to bottom.

Electronegativity also increases from left to right across a period and decreases from top to bottom.

So we can conclude that atomic size decreases in a period but the ionization energy and electronegativity increases across a period.

Learn more about Electronegativity here: brainly.com/question/24977425

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Plates that are floating on molten<br> 5. The Earth's surface is made of<br> rock.

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4 years ago

According to the vsepr model the arrangement of electron pairs around nh3 and ch4 is

bazaltina [42]

The arrangement of electron pairs around CH4 and NH3, According to the VSEPR model is the same, because in each case there are the same number of electron pairs around the central atom. So the NH3 and CH4 arrangement of electron pairs is the same because in each case there are the same number of electron pairs around the central atom.

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3 years ago

13.0 g NaHSO4 is dissolved in water to make a 2.00 L solution what is the molarité

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Answer:

0.054 M

Explanation:

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3 years ago

How many grams of CO2 are in 2.1 mol of the compound? a) 21.0g c) 66.0g

Lilit [14]

1 mole CO2 = 44.0096 grams CO2

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3 years ago

The chemical reaction in which solid calcium oxide is treated liquid water is an example of what: A) decomposition B)combustion

laiz [17]

Answer:

The chemical reaction in which solid calcium oxide is treated liquid water is an example of Synthesis reaction. Hence, the answer is (D) Synthesis.

Explanation:

The formula of Calcium Oxide is CaO.

The formula of liquid water is H₂O.

Calcium Oxide reacts with water and forms Calcium Hydroxide. The Chemical equation is shown below.

CaO + H₂O --> Ca(OH)₂.

This is a Synthesis reaction because Ca(OH)₂ is synthesized by using Calcium Oxide and water.

The product of this reaction is calcium hydroxide, also known as slaked lime.

Thus, when calcium oxide reacts with water, slaked lime is produced.

Calcium oxide is also known as lime and is most commonly used for many purposes. It can be used for pH correction of water or for its disinfection (with excess lime).

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4 years ago