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Questions and Answers
What is the chemical symbol for Nitrogen?
What is the chemical symbol for Nitrogen?
An element can be divided into simpler substances through chemical processes.
An element can be divided into simpler substances through chemical processes.
False
What is the smallest particle of an element called?
What is the smallest particle of an element called?
Atom
The chemical symbol for Helium is _____
The chemical symbol for Helium is _____
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Match the elements with their chemical symbols:
Match the elements with their chemical symbols:
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What is the relative charge of a neutron?
What is the relative charge of a neutron?
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Dimitri Mendeleev arranged the periodic table solely by increasing atomic number.
Dimitri Mendeleev arranged the periodic table solely by increasing atomic number.
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What is located in the nucleus of an atom?
What is located in the nucleus of an atom?
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In a vertical column of the periodic table, elements share the same number of electrons in their ______.
In a vertical column of the periodic table, elements share the same number of electrons in their ______.
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Match the following terms with their definitions:
Match the following terms with their definitions:
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What is the unit of measure for radiation?
What is the unit of measure for radiation?
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The RAM of an element is defined as its average mass compared to the mass of one atom of helium.
The RAM of an element is defined as its average mass compared to the mass of one atom of helium.
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What is the RAM of chlorine?
What is the RAM of chlorine?
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The average mass of a molecule compared to the mass of one atom of carbon-12 is called ______.
The average mass of a molecule compared to the mass of one atom of carbon-12 is called ______.
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Which type of bonding occurs only between metals?
Which type of bonding occurs only between metals?
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Covalent bonding can occur between metals.
Covalent bonding can occur between metals.
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What is formed when two or more atoms bond together?
What is formed when two or more atoms bond together?
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_______ bonding occurs between nonmetals only.
_______ bonding occurs between nonmetals only.
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Match the following types of bonding with their characteristics:
Match the following types of bonding with their characteristics:
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What type of bond occurs between metals and nonmetals?
What type of bond occurs between metals and nonmetals?
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A molecule can consist of atoms of the same element.
A molecule can consist of atoms of the same element.
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What happens to metals during ionic bonding?
What happens to metals during ionic bonding?
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In an ionic compound, sodium and oxygen combine to form Na₂______.
In an ionic compound, sodium and oxygen combine to form Na₂______.
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What does the law of triads formulated by Johann Dobereiner state?
What does the law of triads formulated by Johann Dobereiner state?
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Isotopes of an element have different atomic numbers, but the same mass number.
Isotopes of an element have different atomic numbers, but the same mass number.
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Name one radioactive isotope used to destroy cancer cells.
Name one radioactive isotope used to destroy cancer cells.
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The three types of radiation are α-particles, β-particles, and _____
The three types of radiation are α-particles, β-particles, and _____
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Match the following isotopes with their uses:
Match the following isotopes with their uses:
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Study Notes
Atomic Structure
- Atoms are the smallest particles of an element that retain the properties of that element
- Element - A pure substance that cannot be divided into any simpler substances by any chemical process
- Atomic number (Z) = Number of protons
- Number of electrons = Atomic number
- Mass number (A) = Number of protons + Number of neutrons
- Number of neutrons = Mass number - Atomic number
Subatomic Particles
- Proton - Positive charge, Relative mass 1
- Electron - Negative charge, Relative mass 0
- Neutron - Neutral charge, Relative mass 1
Groups and Periods
- Group - A vertical column that contains elements with the same number of electrons in the valence or outermost shell.
- Period - A horizontal row that contains elements with the same number of electron shells.
Periodic Table
- Dmitri Mendeleev - Organized the periodic table
- Identified patterns.
- Predicted properties.
- Classified similar elements.
- Withstood the test of time.
- Listed elements in order of increasing atomic mass.
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Description
Test your knowledge on the periodic table and chemical symbols with this engaging chemistry quiz. You'll find questions about atoms, bonding, and the properties of elements. Perfect for students learning about chemistry fundamentals.
