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Chemistry

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Stanley Brakus

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Cards in this guide (8)
Do neutrons have an electric charge

Neutrons have a neutral charge
Neutrons have no charge.

Which elements belong to the group of noble gases

Noble gases are: helium, neon, argon, krypton, xenon, radon, ununoctium.

What are horizontal rows of elements in the periodic table

The horizontal rows of elements in the periodic table are called periods.

What are three characteristics of noble gases

Noble gases are all monatomic (single-atom molecules) and have the following characteristics under normal conditions :

  1. Odorless
  2. Colorless
  3. Low reactivity (due to a full outer electron shell)
Valence electrons are responsible for the makeup of the chemical properties of elements

True

Atoms with a low electronegativity like calcium might bond with

an atom with a high electronegativity, like fluorine

How many more valence electrons does magnesium need to have a full outer valence shell

it needs six more electrons to have a full outer valence shell.

Was the first element on the periodic table of elements carbon

Hydrogen is the first element in the periodic table.

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