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OlgaM077 [116]
3 years ago
8

Largest electronegativity element

Chemistry
1 answer:
Leya [2.2K]3 years ago
3 0

Answer:

Fluorine (F)

Explanation:

As you move to the right across the periodic table, the electronegativity increases.  As you move up a group, the electronegativity increases.

This means that the most electronegative element is fluorine.

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What do you mean by atomic number? ​
Allushta [10]

Answer:

Atomic number is the number of protons in an isotope or element.

Explanation: The atomic number is the same number of protons in an element or isotope and if said isotope is neutral than it is the same number of electrons.

Example: Atomic number = 19 Protons = 19 if neutral Electrons = 19

4 0
3 years ago
Compound is pure substances of two or more lenient combined by heat
solniwko [45]
Yes a compound a thing that is composed of two or more separate elements; a mixture.
3 0
3 years ago
What is the molarity of a solution in which 175.8<br> grams of NaCl is dissolved in 1.5 L of water?
Sophie [7]
175.8 g NaCl to moles:
(175.8 g)/(58.44 g/mol) = 3.008 mol NaCl

Molarity = moles of solute/volume of solution in liters

(3.008 mol NaCl)/(1.5 L) = 2.0 M.

The molarity of this solution would be 2.0 M.
8 0
2 years ago
Convert 2.8 x10^27 molecules of N2O5 to grams
liraira [26]

Answer:

2.41 molecules

Have a good day

5 0
2 years ago
Explain why the atomic radius of aluminium is smaller than that of sodium.
garik1379 [7]
Okay, to explain this you might have to grab a periodic table.

Do you have one? Good. Look at the most left side of the periodic table. The first group is the largest atoms in the periodic table. If you go to the right of the periodic table, the atoms get progressively smaller and smaller.

Why is this? Don't atoms get more electrons, and so become significantly bigger as they move to the right?

Although atoms do get more electrons as they go to the right, they also get more protons too. Protons pull on electrons and make atoms smaller. Because of this, going from left to right in a periodic table makes the atoms smaller and smaller, since more and more protons are added.

In this scenario, Aluminum is more to the right than Sodium, which means that it has more protons. Because of this, the protons in Aluminum pull more strongly on electrons than sodium, thus making aluminum smaller.

(Just a side note, going down in a periodic table makes the atoms bigger, since new shells are added every time)

Good luck! If you need any help, just ask :))
-T.B.

6 0
3 years ago
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