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Chemistry

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Xavier Hills

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โˆ™ 2021-09-30 20:41:58
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Cards in this guide (20)
What is a chemical bond

A chemical bond is any of several forces or mechanisms, especially the ionic bond, covalent bond, and metallic bond, by which atoms or ions are bound in a molecule or crystal.

There are two types of chemical bonds mainly, these are the ionic and covalent bonds. The ionic bonds are formed between metals and non metals whereas the covalent bonds are formed between non metals.
A chemical bond is an attraction between two different atoms.

What are dot diagrams

There are two types of diagrams one is the Lewis diagram the other is the Electron dot diagram. To make the electron dot diagram you put the electron symbol and put a dot on one of the sides for each period (you don't count the middle section.)

. .

:Ne: = Neon dot diagram

' '

Which of the following elements has the highest electronegativity

Al, Ca, H, or K?

How could an electron configuration be used to predict relative atomic size

the larger the highest energy level number, the larger the atomic radius

Why do nonmetals tend to gain electrons to form negative ions

They gain the few electrons they need to form full octets

What makes the atomic radius change down a column of the periodic table

The larger the highest energy level, the larger the atomic radius.

What kind of bond is made up of shared electrons

covalent bond

How does a full octet affect trends among the noble gases

A full octet makes the noble gases nonreactive.

Why do atoms tend to be bonded to other atoms

The correct answer is: Atoms are often more stable when bonded to other atoms

What elements have the highest and lowest ionization energy

Helium has the highest first ionization energy and francium has the lowest first ionization energy.

Which values best classifies a bond between 2 atoms as being ionic

The values that best classifies a bond between 2 atoms as being ionic are the valence electrons.

Which of following elements has the largest first ionization energy

Strontium (Sr) Apex

What does the period number tell about the energy levels occupied by electrons in an atoms

The period number tell about the energy levels occupied by electrons

Which of the following elements has the lowest electronegativity ba ca mg sr

Barium(Ba)

What trend is seen atom size going down the periodic table

Excepting groups 5-12 of the periodic table.the atomic radius increase down in the group.

What elements has the least reactive metal

magnesium (Mg)

Which of the following elements is the smallest

question: which of the following elements is the smallest?

answer: chlorine (CI)

How does a lone pair contribute to the molecular shape

The lone pair repels the electrons of the adjacent bonds more so than does a bonding pair of electrons, so thus alters the molecular geometry of the molecule.

What examples are a compound containing an ionic bond

For example this is a salt.

which of the following elements is the largest

Boron

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