First Quarter Summative Test in Consumer Chemistry
Quiz by Mary Ann N. Taway
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- Q1
1. Which of the following statements best describes an element?
I. a pure substance
II. can be separated
III. made of only one kind of atom
IV. a homogeneous mixture
I only
I and III
I and II
I, III and IV
30s - Q2
2. Why do elements belonging to the same group have the same properties?
B. they have the same number of valence electrons
A. they have the same number of main energy levels
C. they have the same last electron configuration
D. Both A and C
60s - Q3
3. Where can we find the nonmetals in the periodic table?
right side of the metalloids
left side of the metalloids
at the bottom
at the center
60s - Q4
4. An element belongs to group VI A and period 3 in the periodic table. Which of the following characteristics best describe this element?
I. a nonmetal
II. has 6 valence electrons and 3 main energy levels
III. has 3 valence electrons and 6 main energy levels
IV. can form -2 ion
I, II, and IV
I, III, IV
III
I
60s - Q5
5. Element X has this electron configuration: 1s2 2s2 2p6 3s2 3p6; to what group and period does this element belong?
Group 6A Period 3
Group 8A Period 3
Group 3A Period 6
Group 8B Period 6
60s - Q6
6. Which of the following statements about the periodic table is true?
I. Elements belonging to the same group have similar outer electron configurations.
II. Elements found in the same row have the same group number.
III. There are more metals than nonmetals in the periodic table.
IV. Elements that are in the leftmost side of the periodic table end in s1 configuration while elements on the rightmost side end in p6
I and II
I , II, III and IV
I, II, and IV
I, II and III
60s - Q7
7. Based on electron configuration, the group and period number where element 15P is ___________.
group 5A and period 5
group 3A and period 5
group 5A and period 3
group 3A and period 3
60s - Q8
8. Which type of element can exist as gas at room temperature?
metalloid
metal
nonmetal
all of these
60s - Q9
9. The pair of elements in question number 1 will have similar outer electron configurations and chemical behaviors because _______________.
they belong to the same period
they are both metals
they belong to the same group
they are both nonmetals
60s - Q10
10. Which pair of elements would most likely have a similar arrangement of outer electrons and have similar chemical behaviors?
helium and fluorine
boron and aluminum
chlorine and oxygen
carbon and nitrogen
60s - Q11
11. Who is considered as the father of the modern Periodic Table?
John Newlands
Henry Moseley
Johann Dobereiner
Dimitri Mendeleev
60s - Q12
12. An element X has an atomic number of 13. What period and group does it belong to in the periodic table?
Group IIIA Period 2
Group 2 Period 3
Group 12 Period 3
Group 13 Period 3
60s - Q13
13. How does the valency of elements change across the period?
no change
decreases
increases then decreases
increases
60s - Q14
14. Which of the following elements has the largest atomic size considering its shells or orbitals?
neon
krypton
helium
argon
60s - Q15
15. Mendeleev's Periodic Table was based on _____________.
atomic number
electron configuration
mass number
atomic mass
60s