Question 1

Which orbital is a spherical shape?

Accepted Answer

A) 2s 
B) 3p 
C) 4d 
D) 5f 
A) 2s 
B) 3p 
C) 4d 
D) 5f

Question 2

An electron in the excited state does not necessarily return to a ground state in a single jump.

Accepted Answer

A) True 
 B)False

Question 3

The atom size decreases as one proceeds from left to right across a period.

Accepted Answer

A) True 
 B)False

Question 4

Match between columns
                        Premises: S⁶+
Si⁴+
P
N³-
C1⁵+
Ca²+
Si
S²-
C1
S+⁴
S
Mg²+
Al
Si⁴-

Accepted Answer

The Answer of 11ec9313_1d9f_3ee2_ab09_ef41cb2f9200_TB5644_00 and 11ec9313_4c30_c8f9_ab09_ff6aa9c64fed_TB5644_00 and 11ec9313_3c14_5596_ab09_7ffeefbf0203_TB5644_00 and 11ec9313_53bb_2caa_ab09_310d2036c7a9_TB5644_00 is...

Question 5

For the electron of a hydrogen atom, which of the following quantum "jumps" requires the most energy?

Accepted Answer

A) from n = 3 to n = 4 
B) from n = 2 to n = 3 
C) from n = 4 to n = 5 
D) from n = 1 to n = 2 
A) from n = 3 to n = 4 
B) from n = 2 to n = 3 
C) from n = 4 to n = 5 
D) from n = 1 to n = 2

Question 6

Atoms in which of the following groups will likely lose three electrons?

Accepted Answer

A) IIIA 
B) VA 
C) IIA 
D) IVA 
A) IIIA 
B) VA 
C) IIA 
D) IVA

Question 7

If an element has a small electron affinity value it can easily lose an electron.

Accepted Answer

A) True 
 B)False

Question 8

Write the complete electronic ground state configuration of the Se2- ion. Which other element (if any)shares this electronic configuration?

Accepted Answer

Se : 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4

Question 9

H+ has one electron.

Accepted Answer

A) True 
 B)False

Question 10

Atoms tend to increase in size as one moves from left to right across a period.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following elements is the largest size halogen?

Accepted Answer

A) He 
B) Br 
C) F 
D) Kr 
A) He 
B) Br 
C) F 
D) Kr

Question 12

The valence shell ________.

Accepted Answer

A) always contains eight electrons 
B) is the lowest energy shell in an atom 
C) is the outermost occupied shell in an atom 
D) is always the same for anions and cations 
A) always contains eight electrons 
B) is the lowest energy shell in an atom 
C) is the outermost occupied shell in an atom 
D) is always the same for anions and cations

Question 13

Which of the following has attained a noble gas electronic configuration?

Accepted Answer

A) Si4+ 
B) Cl1+ 
C) Al3- 
D) Cr3+ 
A) Si4+ 
B) Cl1+ 
C) Al3- 
D) Cr3+

Question 14

Should an oxygen atom (O)gain two electrons, it would then have the same ground state electronic configuration as an atom of neon (Ne), thus satisfying the octet rule.

Accepted Answer

A) True 
 B)False

Question 15

Carbon can assume both +4 and -4 charges.

Accepted Answer

A) True 
 B)False

Question 16

Which color light is composed of photons having the largest energy?

Accepted Answer

A) blue 
B) green 
C) yellow 
D) red 
A) blue 
B) green 
C) yellow 
D) red

Question 17

A non-metal is an element that tends to gain valence electrons in chemical reactions becoming a cation in the process.

Accepted Answer

A) True 
 B)False

Question 18

What is the trend in atomic size in the series of Group IIA elements Be through Ra?

Accepted Answer

A) Atomic size increases in this series. 
B) Atomic size decreases in this series. 
C) Atomic size remains unchanged in this series. 
D) Atomic size increases at first, then decreases in this series. 
A) Atomic size increases in this series. 
B) Atomic size decreases in this series. 
C) Atomic size remains unchanged in this series. 
D) Atomic size increases at first, then decreases in this series.

Question 19

Which is the correct electronic configuration for Se (atomic number 34)in the ground state?

Accepted Answer

A) 1s22s22p63s23p63d104s24p4 
B) 1s22s22p63s23p63d104s04p6 
C) 1s22s22p63s23p64s23d104p4 
D) 1s22s22p63s23p63d104s03p6 
A) 1s22s22p63s23p63d104s24p4 
B) 1s22s22p63s23p63d104s04p6 
C) 1s22s22p63s23p64s23d104p4 
D) 1s22s22p63s23p63d104s03p6

Question 20

The ion that has 14 protons and 18 electrons is ________.

Accepted Answer

A) Si4+ 
B) Si4- 
C) N4+ 
D) N4- 
A) Si4+ 
B) Si4- 
C) N4+ 
D) N4-

Which orbital is a spherical shape?

An electron in the excited state does not necessarily return to a ground state in a single jump.

The atom size decreases as one proceeds from left to right across a period.

For the electron of a hydrogen atom, which of the following quantum "jumps" requires the most energy?

Atoms in which of the following groups will likely lose three electrons?

If an element has a small electron affinity value it can easily lose an electron.

Write the complete electronic ground state configuration of the Se^2- ion. Which other element (if any)shares this electronic configuration?

H⁺ has one electron.

Atoms tend to increase in size as one moves from left to right across a period.

Which of the following elements is the largest size halogen?

The valence shell ________.

Which of the following has attained a noble gas electronic configuration?

Should an oxygen atom (O)gain two electrons, it would then have the same ground state electronic configuration as an atom of neon (Ne), thus satisfying the octet rule.

Carbon can assume both +4 and -4 charges.

Which color light is composed of photons having the largest energy?

A non-metal is an element that tends to gain valence electrons in chemical reactions becoming a cation in the process.

What is the trend in atomic size in the series of Group IIA elements Be through Ra?

Which is the correct electronic configuration for Se (atomic number 34)in the ground state?

The ion that has 14 protons and 18 electrons is ________.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Exam 4: The Modern Model of the Atom

Which orbital is a spherical shape?

An electron in the excited state does not necessarily return to a ground state in a single jump.

The atom size decreases as one proceeds from left to right across a period.

For the electron of a hydrogen atom, which of the following quantum "jumps" requires the most energy?

Atoms in which of the following groups will likely lose three electrons?

If an element has a small electron affinity value it can easily lose an electron.

Write the complete electronic ground state configuration of the Se2- ion. Which other element (if any)shares this electronic configuration?

H+ has one electron.

Atoms tend to increase in size as one moves from left to right across a period.

Which of the following elements is the largest size halogen?

The valence shell ________.

Which of the following has attained a noble gas electronic configuration?

Should an oxygen atom (O)gain two electrons, it would then have the same ground state electronic configuration as an atom of neon (Ne), thus satisfying the octet rule.

Carbon can assume both +4 and -4 charges.

Which color light is composed of photons having the largest energy?

A non-metal is an element that tends to gain valence electrons in chemical reactions becoming a cation in the process.

What is the trend in atomic size in the series of Group IIA elements Be through Ra?

Which is the correct electronic configuration for Se (atomic number 34)in the ground state?

The ion that has 14 protons and 18 electrons is ________.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Write the complete electronic ground state configuration of the Se^2- ion. Which other element (if any)shares this electronic configuration?

H⁺ has one electron.