Download Name: Date: _____ Pd: _____ Chemistry, PERIODIC TABLE Spring

Name: _______________________
Date: _____ Pd: _____
Chemistry, PERIODIC TABLE
1. Based on Reference Table S, atoms of which of these elements
have the strongest attraction for the electrons in a chemical bond?
(1) S
(2) Si
(3) P
Spring, Regents Prep
Pre/Post Test ANSWER
10. Which particle diagram represents a sample of one compound,
only?
(4) Al
2. Which electron-dot symbol correctly represents an atom of its
given element?
(1)
(2)
(3)
(4)
(1)
(2)
(3)
(4)
3. Atom X has an electron configuration of 2-8-2. Which electron-dot
symbol correctly represents this atom?
(1)
(2)
(3)
(4)
4. Which trends are observed when the elements in Period 3 on the
Periodic Table are considered in order of increasing atomic
number?
(1) The atomic radius decreases, and the first ionization
energy generally increases.
(2) The atomic radius decreases, and the first ionization energy
generally decreases.
(3) The atomic radius increases, and the first ionization energy
generally decreases.
(4) The atomic radius increases, and the first ionization energy
generally increases.
11. What is the number of electrons in an Al3+ ion?
(1) 10
(2) 13
(3) 3
(4) 16
5. Which element has both metallic and nonmetallic properties?
(1) Rb
(2) Sr
(3) Rn
(4) Si
6. An atom of argon in the ground state tends not to bond with an
atom of a different element because the argon atom has
(1)
(2)
(3)
(4)
a total of eight valence electrons
more protons than neutrons
a total of two valence electrons
more neutrons than protons
7. Which trends are observed as each of the elements within Group 15
on the Periodic Table is considered in order from top to bottom?
(1) Their metallic properties decrease and their atomic radii
increase.
(2) Their metallic properties increase and their atomic radii
decrease.
(3) Their metallic properties increase and their atomic radii
increase.
(4) Their metallic properties decrease and their atomic radii
decrease.
8. An Mg atom differs from an Mg2+ ion in that the atom has a
(1) smaller nucleus
(3) larger radius
(2) larger nucleus
(4) smaller radius
9. In Period 2 of the Periodic Table, which Group contains the
element with the highest first ionization energy?
(1) halogens
(3) noble gases
HSVD
(2) alkaline earth metals
(4) alkali metals
Ms. Chang
Page 1
12. Base your answer to the following question on
the information below.
The ionic radii of some Group 2 elements are given in the table below.
On the same grid, plot the data from the data table. Circle and connect the points.
13. Explain, in terms of atomic structure, why Group 18 elements on the Periodic Table rarely form compounds.
Base your answers to questions 14 and 15 on the information below and on your knowledge of chemistry.
Silver-plated utensils were popular before stainless steel became widely used to make eating utensils. Silver tarnishes
when it comes in contact with hydrogen sulfide,
, which is found in the air and in some foods. However, stainless steel
does not tarnish when it comes in contact with hydrogen sulfide.
14. Draw a Lewis electron-dot diagram for the compound that tarnishes silver.
15. In the ground state, an atom of which noble gas has the same electron configuration as the sulflde ion in
HSVD
Ms. Chang
?
Page 2
Answer Key
Periodic Table Pre/Post Test
1.
1
2.
2
3.
2
4.
1
5.
4
6.
1
7.
3
8.
3
9.
3
10.
4
11.
1
14.
15.
–Ar –argon –element
18
12.
13.
HSVD
Group 18 elements
rarely form
compounds because
their atoms have
stable electron
configurations. –Their
valence shells are
completely filled.
–All the elements
have maximum
numbers of valence
electrons. –Atoms of
Group 18 have a
stable octet except He,
which is stable with
two electrons.
Ms. Chang
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