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☆☆☆☆☆Cards in this guide (10)
Do neutrons have an electric charge
Neutrons have a neutral charge
Neutrons have no charge.
Elements that typically take electrons
are nonmetals, include the halogens
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 :
- Odorless
- Colorless
- Low reactivity (due to a full outer electron shell)
Valence electrons are responsible for the makeup of the chemical properties of elements
True
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.
Is MgCI2 a molecule
There is no such thing as MgCI2.
MgCl2 (with a lowercase L) is magnesium chloride.
It is an ionic compound, not a molecule.
Which of the following are pure elements MgCl2 NaCl C3H8 Ag Al
Ag and Al
Which of the following terms describes water molecules sticking to other water molecules
cohesion
Is the periodic table often referred to as the chemists
No. A periodic table is a schematic representation of the elements. Chemists are people.
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