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crimeas [40]
3 years ago
15

Three sections of the periodic table are labeled A, B, and C in the image below.

Chemistry
1 answer:
OLga [1]3 years ago
3 0

Answer:

Choice number two: this element is malleable and ductile.

Explanation:

A modern periodic table can be split into three sections:

(from left to right)

  • Metals,
  • Metalloids, and
  • Nonmetals.

Based on the descriptions, section A likely refers to the metals. Section B likely refers to metalloids. Section C likely refers to nonmetals.

Metals are malleable and ductile. They are good conductors of electricity.

The reason is that in a metal, the valence electrons do not belong to some specific atom. Rather, the metal cations share these electrons. The electrons are free to move around the metal and conduct electricity.

Ionic compounds like table salt are brittle. The reason is that when an ionic compound is deshaped, ions of the same charge come directly into contact with each other. That creates repulsion and cracks the crystal. In contrast, the metal cations in a metal won't come into contact with each other. Electrons would rapidly fill the gap between these cations, so the metal won't crack. That's why unlike ionic compounds, metals are malleable and ductile.

The melting points of metals can vary significantly. Indeed, the mercury (\rm Hg, a metal) is a liquid at room temperature. In contrast, tungsten (\rm W, also a metal) won't melt until it is heated to over \rm 3000\, ^\circ C.

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Which substances were ionic?
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The formation of electron configurations such as noble gases can be done by sharing electrons with covalent bonds or hand over electrons with ionic bonds

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Let see the answer choices

  • Oil

It is a covalent compound because part of the hydrocarbon,  a liquid that forms a bond between elements C, H and O, and does not dissolve in water (floats on water)

  • Cornstarch

Obtained from corn which contains glucose which is a carbohydrate. It does not dissolve in water. Contains a bond between C, H and O. Includes covalent compounds

  • Sodium chloride
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Both are ionic compounds, soluble in water, in solid form

NaCl ⇒ Na⁺ + Cl⁻

NaHCO₃⇒ Na⁺ + HCO₃⁻

<h3>Learn more </h3>

ionic bonding

brainly.com/question/1603987

Type of atoms typically form covalent bonds

brainly.com/question/13648552

the ionic compound LiI

brainly.com/question/2732123#

Keywords : ionic, covalent, Oil ,Cornstarch ,Sodium chloride,Sodium bicarbonate

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