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40 notecards = 10 pages (4 cards per page)

Viewing:

Atomic

front 1

Consider the composition of the species W, X, Y and Z below. Which species is an anion?
A. W
B. X
C. Y
D. Z

back 1

A

front 2

Energy levels for an electron in a hydrogen atom are
A. evenly spaced.
B. farther apart near the nucleus.
C. closer together near the nucleus.
D. arranged randomly.

back 2

B

front 3

Which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens?
I. Group number
II. Period number
A. I only
B. II only
C. Both I and II
D. Neither I nor II

back 3

A

front 4

How do bond length and bond strength change as the number of bonds between two atoms increases?

back 4

C

front 5

Which of the following is true for CO2?

back 5

A

front 6

The molar masses of C2H6, CH3OH and CH3F are very similar. How do their boiling points compare?
A. C2H6 < CH3OH < CH3F
B. CH3F < CH3OH < C2H6
C. CH3OH < CH3F < C2H6
D. C2H6 < CH3F < CH3OH

back 6

D

front 7

What is the electron configuration for an atom with Z = 22?
A. 1s2,2s2,2p6,3s2,3p6,3d4
B. 1s2,2s2,2p6,3s2,3p6,4s2,4p2
C. 1s2,2s2,2p6,3s2,3p6,3d2,4p2
D. 1s2,2s2,2p6,3s2,3p6,4s2,3d2

back 7

D

front 8

What is the correct number of each particle in a fluoride ion, 19F–?

back 8

C

front 9

Which statement is correct for the emission spectrum of the hydrogen atom?
A. The lines converge at lower energies.
B. The lines are produced when electrons move from lower to higher energy levels.
C. The lines in the visible region involve electron transitions into the energy level closest to the nucleus.
D. The line corresponding to the greatest emission of energy is in the ultraviolet region.

back 9

D

front 10

Which is the correct description of polarity in F2 and HF molecules?
A. Both molecules contain a polar bond.
B. Neither molecule contains a polar bond.
C. Both molecules are polar.
D. Only one of the molecules is polar.

back 10

D

front 11

Which types of bonding are present in CH3CHO in the liquid state?
I. Single covalent bonding
II. Double covalent bonding
III. Hydrogen bonding
A. I and II only
B. I and III only
C. II and III only
D. I, II and III

back 11

A

front 12

Which statement(s) is/are generally true about the melting points of substances?
I. Melting points are higher for compounds containing ions than for compounds
containing molecules.
II. A compound with a low melting point is less volatile than a compound with a high melting point.
III. The melting point of a compound is decreased by the presence of impurities.
A. I only
B. I and III only
C. II and III only
D. I, II and III

back 12

B

front 13

What is the correct sequence for the processes occurring in a mass spectrometer?
A. vaporization, ionization, acceleration, deflection
B. vaporization, acceleration, ionization, deflection
C. ionization, vaporization, acceleration, deflection
D. ionization, vaporization, deflection, acceleration

back 13

A

front 14

How many valence electrons are present in an atom of an element with atomic number 16?
A. 2
B. 4
C. 6
D. 8

back 14

C

front 15

How many protons, neutrons and electrons are there in the species 26Mg2+?

back 15

B

front 16

What is the total number of p orbitals containing one or more electrons in germanium (atomic number 32)?
A. 2
B. 3
C. 5
D. 8

back 16

D

front 17

A certain sample of element Z contains 60% of 69Z and 40% of 71Z. What is the relative atomic mass of element Z in this sample?
A. 69.2
B. 69.8
C. 70.0
D. 70.2

back 17

B

front 18

What is the difference between two neutral atoms represented by the symbols 59 Co and 59 Ni?
A. The number of neutrons only.
B. The number of protons and electrons only.
C. The number of protons and neutrons only.
D. The number of protons, neutrons and electrons.

back 18

D

front 19

A certain sample of element Z contains 60% of 69Z and 40% of 71Z. What is the relative atomic mass of element Z in this sample?
A. 69.2
B. 69.8
C. 70.0
D. 70.2

back 19

B

front 20

Which ion would undergo the greatest deflection in a mass spectrometer?
A. 16O+
B. 16O2+
C. 18O2+
D. (16O18O)+

back 20

B

front 21

How many electrons are there in one
A. 10
B. 12
C. 14
D. 22

back 21

A

front 22

The electron arrangement of sodium is 2.8.1. How many occupied main electron energy levels are there in an atom of sodium?
A. 1
B. 3
C. 10
D. 11

back 22

B

front 23

How many electrons are there in all the d orbitals in an atom of xenon?
A. 10
B. 18
C. 20
D. 36

back 23

C

front 24

Which two atoms are isotopes?
A. W and Y
B. W and Z
C. X and Z
D. Y and Z

back 24

B

front 25

Which statement is correct about a line emission spectrum?
A. Electrons absorb energy as they move from low to high energy levels.
B. Electrons absorb energy as they move from high to low energy levels.
C. Electrons release energy as they move from low to high energy levels.
D. Electrons release energy as they move from high to low energy levels.

back 25

D

front 26

How many neutrons are there in the ion 18O2–?
A. 8
B. 10
C. 16
D. 20

back 26

B

front 27

What is the electron arrangement of silicon?
A. 2.4
B. 2.8
C. 2.8.4
D. 2.8.8

back 27

C

front 28

Which is correct about the element tin (Sn) (Z = 50)?

back 28

C

front 29

Which statement is correct about the isotopes of an element?
A. They have the same mass number
B. They have the same electron arrangement
C. They have more protons than neutrons
D. They have the same numbers of protons and neutrons

back 29

B

front 30

What is the total number of electrons in p orbitals in an atom of iodine?
A. 5
B. 7
C. 17
D. 23

back 30

D

front 31

What is the difference between two neutral atoms represented by the symbols
A. The number of neutrons only.
B. The number of protons and electrons only.
C. The number of protons and neutrons only.
D. The number of protons, neutrons and electrons.

back 31

D

front 32

Which statements are correct for the emission spectrum of the hydrogen atom?
I. The lines converge at lower energies.
II. Electron transition to n =1 are responsible for lines in the UV region.
III. Lines are produced when electrons move from higher to lower energy levels.
A. I and II only
B. I and III only
C. II and III only
D. I, II and III

back 32

C

front 33

A transition metal ion X2+ has the electronic configuration [Ar]3d9. What is the atomic number of the element?
A. 27
B. 28
C. 29
D. 30

back 33

C

front 34

What is the symbol for a species that contains 15 protons, 16 neutrons and 18 electrons?
D. 31/15 P(3-)

back 34

D

front 35

What is the electron arrangement of an Al3+ ion?
A. 2, 8
B. 2, 3
C. 2, 8, 3
D. 2, 8, 8

back 35

A

front 36

What will happen to the volume of a fixed mass of gas if the pressure and the Kelvin temperature are both doubled?
A. It will remain the same.
B. It will be double its initial volume.
C. It will be one-half its initial volume.
D. It will be four times its initial volume.

back 36

A

front 37

How many orbitals are there in the n = 3 level of an atom?
A. 3
B. 5
C. 7
D. 9

back 37

D

front 38

you can do it...

back 38

A

front 39

What is the correct sequence for the processes occurring in a mass spectrometer?
A. vaporization, ionization, acceleration, deflection
B. vaporization, acceleration, ionization, deflection
C. ionization, vaporization, acceleration, deflection
D. ionization, vaporization, deflection, acceleration

back 39

A

front 40

What is the electron configuration for the copper(I) ion, (Z = 29)?
A. [Ar]4s23d9
B. [Ar]4s13d10
C. [Ar]4s13d9
D. [Ar]3d10

back 40

D