Semester 1 Final Review Question Preview (ID: 17041)
Chemistry Review For Semester 1 Final.
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Which of the following element would have only TWO dots in its Lewis Dot diagram?
a) Mg
b) Na
c) Cl
d) Al
Which of the following pair of elements would make a covalent bond?
a) sulfur and oxygen
b) sodium and chlorine
c) magnesium and nitrogen
d) lithium and oxygen
An oxygen ion would usually have a charge of ____.
a) -2
b) +2
c) -1
d) +1
Nitrogen has ____ valence electrons.
a) 5
b) 4
c) 3
d) 7
A metal and a nonmetal usually form a(n) ______.
a) ionic bond
b) covalent bond
c) cation
d) anion
Which atom is most likely to have the largest atomic radius?
a) Na
b) Al
c) S
d) Cl
The octet rule states that in order for an atom to be stable, ____.
a) it must have 10 valence electrons.
b) it must have 8 neutrons in the outermost energy level.
c) it must have 8 electrons in the outermost energy level.
d) it must have 10 valence neutrons.
If an atom GAINS an electron, ____.
a) it has a charge of +1.
b) it is a cation.
c) it has a charge of -1.
d) its charge remains unchanged.
If an atom LOSES 2 electrons, ____.
a) it has a charge of +2.
b) it has a charge of -2.
c) its charge can either be +2 or -2.
d) its charge is still 0.
An atom with 12 electrons, 12 protons, and 11 neutrons would have a mass number of ____.
a) 11
b) 12
c) 23
d) 24
Based on their locations on the periodic table, which pair of elements have the most similar characteristics?
a) Ne and Ar
b) Si and Cl
c) Ca and Cu
d) Be and Bi
Which of the following is classified as a metal?
a) nitrogen
b) carbon
c) sulfur
d) sodium
Which element is located in group 1 of the periodic table?
a) K
b) He
c) B
d) Be
The noble gases helium, neon, argon and krypton are all located in group 18 of the periodic table. What can you predict about these elements, based on their group?
a) These elements react with many non-metals to form cations.
b) These elements are unstable and will easily react with metals to form anions.
c) These elements are very common in the atmosphere
d) These elements are so stable they do not easily react with anything.
The halogens are located where on the periodic table?
a) group 18
b) group 17
c) periods 6 and 7
d) group 1
As you move DOWN a period, what happens to the atomic radius?
a) atomic radius increases.
b) atomic radius decreases.
c) atomic radius changes randomly.
d) there is no change in atomic radius.
When moving from left to right across a period of the periodic table
a) the number of energy levels and valence electrons increases
b) the number of energy levels and valence electrons decreases
c) the number of valence electrons increases and the number of energy levels stays the same
d) the number of energy levels increases and the number of valence electrons stays the same
Which of the following has the greatest electronegativity?
a) oxygen
b) phosphorus
c) nitrogen
d) sulfur
Two elements are in the same row of the periodic table. The one on the right always ___.
a) has a lower ionization energy.
b) has fewer electrons.
c) has more protons.
d) has a greater atomic radius.
The periodic table is organized so chemists can easily see
a) The color of each element
b) The importance of each element
c) The atomic number and weight of each element
d) The smell and taste of each element
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