Name ________________________________________________________________________ Period _______
Unit 4 Study Guide
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A common isotope of iron has a mass number of 56. How many neutrons does it have?
The atomic number tells you the number of…
A particle with zero charge found in the nucleus of an atom is called a(n):
Atoms of the same element whose nucleus contains different numbers of neutrons are called:
Atoms with the same number of protons are…
The mass of an atom is determined mainly by the:
Protons and neutrons are found grouped together in the:
How many protons does a carbon atom with a mass number of 14 and an atomic number of 6 have?
The lowest energy level can hold ________ electrons.
A repeating pattern across a row of the periodic table is called….
The noble gases such as helium and xenon do not form chemical bonds with other elements because they:
Most metals are ________________ (choose one: ductile, brittle, poor conductors, dull)
If an atom becomes an ion by gaining three electrons, what is its oxidation number (charge)?
List the Alkali Metals.
Which group will commonly form compounds with oxygen in a one-to-one ratio?
Which metals have a tendency to gain two electrons in order to be stable?
Most non-metals on the periodic table are located on the:
The elements that do not naturally form compounds with other atoms belong to the group known as:
The element that is the basis of life here on Earth is:
What is the largest number of valence electrons that an atom in the first period can have?
Name ________________________________________________________________________ Period _______
Unit 4 Study Guide
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1. A common isotope of iron has a mass number of 56. How many neutrons does it have?
The atomic number tells you the number of…
A particle with zero charge found in the nucleus of an atom is called a(n):
Atoms of the same element whose nucleus contains different numbers of neutrons are called:
Atoms with the same number of protons are…
The mass of an atom is determined mainly by the:
Protons and neutrons are found grouped together in the:
How many protons does a carbon atom with a mass number of 14 and an atomic number of 6 have?
The lowest energy level can hold ________ electrons.
A repeating pattern across a row of the periodic table is called….
The noble gases such as helium and xenon do not form chemical bonds with other elements because they:
Most metals are ________________ (choose one: ductile, brittle, poor conductors, dull)
If an atom becomes an ion by gaining three electrons, what is its oxidation number (charge)?
List the Alkali Metals.
Which group will commonly form compounds with oxygen in a one-to-one ratio?
Which metals have a tendency to gain two electrons in order to be stable?
Most non-metals on the periodic table are located on the:
The elements that do not naturally form compounds with other atoms belong to the group known as:
The element that is the basis of life here on Earth is:
What is the largest number of valence electrons that an atom in the first period can have?
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An atom that acquires an electrical charge by gaining or losing electrons is known as:
Describe covalent bonding.
Describe what the chemical formula tells about an ionic or covalent compound.
Draw a lewis dot diagram for Chlorine.
When a Magnesium atom loses 2 electrons, it becomes a _________ ion. (Give the oxidation number.)
Why do atoms form chemical bonds?
How many valence electrons are in an atom of aluminum, atomic number 13?
Which element is always in organic molecules?
What is the oxidation number (charge) for halogens?
Elements in the first column of the periodic table are known as alkali metals. What do these elements have in common
when ionized (stable)?
Explain how particle size or surface area affects reaction time.
How is nuclear radiation harmful to cells? What does it do?
Explain the difference between nuclear fusion and fission. Give an example of each.
What is the half-life for an element which is ¼ radioactive after 2 minutes?
Which element contains 5 protons and 4 neutrons and 5 electrons?
Which period of the periodic table has electrons in the 3 rd energy level?
Molecules are held together by __________ bonds.
An outer energy level is full with ________ electrons.
Describe the shape of molecules of nucleic acids, such as DNA.
Nuclear reactions are different from chemical reactions because….
What are the signs that a chemical reaction may have occurred?
What are the reactants in a chemical reaction? The products?
What is an endothermic reaction? Exothermic?
21. An atom that acquires an electrical charge by gaining or losing electrons is known as:
Describe covalent bonding.
Describe what the chemical formula tells about an ionic or covalent compound.
Draw a lewis dot diagram for Chlorine.
When a Magnesium atom loses 2 electrons, it becomes a _________ ion. (Give the oxidation number.)
Why do atoms form chemical bonds?
How many valence electrons are in an atom of aluminum, atomic number 13?
Which element is always in organic molecules?
What is the oxidation number (charge) for halogens?
Elements in the first column of the periodic table are known as alkali metals. What do these elements have in common
when ionized (stable)?
Explain how particle size or surface area affects reaction time.
How is nuclear radiation harmful to cells? What does it do?
Explain the difference between nuclear fusion and fission. Give an example of each.
What is the half-life for an element which is ¼ radioactive after 2 minutes?
Which element contains 5 protons and 4 neutrons and 5 electrons?
Which period of the periodic table has electrons in the 3 rd energy level?
Molecules are held together by __________ bonds.
An outer energy level is full with ________ electrons.
Describe the shape of molecules of nucleic acids, such as DNA.
Nuclear reactions are different from chemical reactions because….
What are the signs that a chemical reaction may have occurred?
What are the reactants in a chemical reaction? The products?
What is an endothermic reaction? Exothermic?