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Study Quiz 2
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1
Which of the following is true?
A)Electrons and protons form the nucleus of an atom.
B)Neutrons and protons form the nucleus of an atom.
C)Protons are heavier than electrons.
D)Neutrons are heavier than protons.
2
The mass number is the
A)total number of protons and neutrons in the nucleus of one of an element's atoms
B)number of protons in the nucleus of each atom of an element
C)total number of protons and electrons in an atom of an element
D)number of electrons in the nucleus of an atom of an element
3
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A)207 neutrons and 82 electrons
B)125 neutrons and 82 protons
C)82 neutrons and 125 protons
D)207 protons and electrons and 82 neutrons
4
The periodic law states that
A)the chemical and physical properties of the elements repeat in a regular periodic pattern when they are arranged according to their mass number
B)the chemical and physical properties of the elements repeat in a regular periodic pattern when they are arranged according to their number of neutrons and protons
C)the chemical and physical properties of the elements repeat in a regular periodic pattern when they are arranged according to their atomic number
D)the chemical and physical properties of the elements repeat in a regular periodic pattern when they are arranged according to their number of neutrons and electrons
5
Which of the following is true?
A)Group 2 elements are alkaline earth metals and react with oxygen to form oxides.
B)Group 1 elements are alkaline earth metals and react with oxygen to form oxides.
C)Group 17 elements are known as halogens and do not combine in nature with any other elements.
D)Group 2 elements are called alkali metals and react with water to form alkaline solutions.
6
Which of the following is not true?
A)Group 18 elements are noble gases.
B)The ten B group elements are known as the representative elements.
C)The ten elements in group B are known as the transition elements.
D)Group 17 elements form salts.
7
Which of the following is true?
A)A maximum of eight electrons can occupy the first energy level.
B)A maximum of two electrons can occupy the second energy level.
C)A maximum of eight electrons can occupy the second energy level.
D)Hydrogen and helium have two energy levels.
8
An element's period number
A)is the same as the number of energy levels that the electrons of its atoms occupy
B)is the same as the number of protons and neutrons in the nucleus of an atom of that element
C)is the same as the number of electrons that occupy its outer energy level
D)is the same as the number of protons in the nucleus of an atom of that element
9
Mg2+ has
A)12 protons and 10 electrons.
B)10 protons and 12 neutrons.
C)2 protons and 12 electrons.
D)10 protons and 12 electrons.





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