Question 1

Give the electron dot structure for an element in Group 7A.

Accepted Answer

Any of the following...

Question 2

An isotope with 15 protons and 17 neutrons will have which symbol?

Accepted Answer

A)   Cl
B)   Cl
C)   P
D)   P
E)   P

Question 3

The correct order for filling orbitals with electrons is

Accepted Answer

A)  1s,2s,2p,3s,3d,4s,3p.
B)  1s,2s,3s,4s,2p,3p,3d.
C)  1s,2s,2p,3s,3p,4s,3d.
D)  1s,2s,3d,2p,3p,3s,4s.
E)  1s,2s,2p,3s,3d,3p,4s.

Question 4

Which of the following is the correct dot structure for an atom of sulfur?

Accepted Answer

A)   
B)   
C)   
D)   
E)  None of these are correct.

Question 5

Which element is not a semimetal?

Accepted Answer

A)  Al
B)  Si
C)  Ge
D)  As
E)  none of the above

Question 6

Which of the following elements is a noble gas?

Accepted Answer

A)  Cl
B)  H
C)  N
D)  Ne
E)  O

Question 7

In terms of atomic structure,the common characteristic of elements in the same group is

Accepted Answer

A)  number of electrons.
B)  number of electrons in the outermost shell.
C)  number of neutrons.
D)  number of protons.
E)  none of the above

Question 8

Magnesium is an example of a(an)

Accepted Answer

A)  alkali metal.
B)  alkaline earth.
C)  halogen.
D)  noble gas.
E)  transition metal.

Question 9

The maximum number of electrons in any orbital is

Accepted Answer

A)  1.
B)  2.
C)  3.
D)  4.
E)  5.

Question 10

Which group of elements contains only non-metals?

Accepted Answer

A)  Mg,Ca,Sr
B)  V,Cr,Mn
C)  Cl,Ar,K
D)  P,As,Se
E)  C,S,I

Question 11

Which elements all belong in the same group?

Accepted Answer

A)  C,N,O
B)  Fe,Cu,Ni
C)  B,Si,As
D)  F,Cl,Br
E)  Al,Ge,Sb

Question 12

The element which has four valence electrons is

Accepted Answer

A)  H.
B)  Na.
C)  Mg.
D)  Si.
E)  S.

Question 13

Which characteristics correctly describe an electron?

Accepted Answer

A)  approximate mass 1 amu;charge +1;inside nucleus
B)  approximate mass 1 amu;charge -1;inside nucleus
C)  approximate mass 1 amu;charge 0;inside nucleus
D)  approximate mass 5 × 10-4 amu;charge 0;inside nucleus
E)  approximate mass 5 × 10-4 amu;charge -1;outside nucleus

Question 14

An atom with Z = 35 and A = 80 contains ________ protons,________ electrons,and ________ neutrons.

Accepted Answer

A)  35;35;80
B)  80;35;35
C)  35;35;45
D)  45;80;45
E)  45;80;35

Question 15

Which element is most likely to have chemical properties similar to those of bromine (atomic number 35) ?

Accepted Answer

A)  S (atomic number 16) 
B)  Se (atomic number 34) 
C)  Kr (atomic number 36) 
D)  Te (atomic number 52) 
E)  I (atomic number 53)

Question 16

The element with the electron configuration 1s2 2s2 2p6 3s2 3p5 is

Accepted Answer

A)  fluorine.
B)  chlorine.
C)  carbon.
D)  potassium.
E)  sulfur.

Question 17

Which statement is incorrect according to modern atomic theory?

Accepted Answer

A)  Some sugars have the formula C3.5H7O3.5.
B)  An atom of 14N has the same approximate mass as an atom of 14C.
C)  An atom of 14N behaves differently in chemical reactions than an atom of 14C.
D)  An example of a chemical reaction is CaCO3 → CaO + CO2.
E)  C2H6 and C3H8 are both possible compounds of carbon and hydrogen.

Question 18

What is the maximum number of electrons that can occupy the 4f orbitals?

Accepted Answer

A)  2
B)  6
C)  8
D)  10
E)  14

Question 19

The smallest amount of an element that retains that element's characteristics is the

Accepted Answer

A)  atom.
B)  electron.
C)  molecule.
D)  neutron.
E)  proton.

Question 20

Which of the following is a correct dot structure for an element in Group 6A?

Accepted Answer

A)   
B)   
C)   
D)   
E)  None of these are correct.

Exam 2: Atoms and the Periodic Table

An isotope with 15 protons and 17 neutrons will have which symbol?

Correct AnswerverifiedShow Answer

Which of the following is a correct dot structure for an element in Group 6A?

Correct AnswerverifiedShow Answer

The element with the electron configuration 1s2 2s2 2p6 3s2 3p5 is

Correct AnswerverifiedShow Answer

Which element is most likely to have chemical properties similar to those of bromine (atomic number 35) ?

Correct AnswerverifiedShow Answer

The maximum number of electrons in any orbital is

Correct AnswerverifiedShow Answer

Magnesium is an example of a(an)

Correct AnswerverifiedShow Answer

The element which has four valence electrons is

Correct AnswerverifiedShow Answer

The smallest amount of an element that retains that element's characteristics is the

Correct AnswerverifiedShow Answer

Which element is not a semimetal?

Correct AnswerverifiedShow Answer

Which statement is incorrect according to modern atomic theory?

Correct AnswerverifiedShow Answer

In terms of atomic structure,the common characteristic of elements in the same group is

Correct AnswerverifiedShow Answer

Which group of elements contains only non-metals?

Correct AnswerverifiedShow Answer

The correct order for filling orbitals with electrons is

Correct AnswerverifiedShow Answer

Which characteristics correctly describe an electron?

Correct AnswerverifiedShow Answer

Which elements all belong in the same group?

Correct AnswerverifiedShow Answer

An atom with Z = 35 and A = 80 contains ________ protons,________ electrons,and ________ neutrons.

Correct AnswerverifiedShow Answer

Give the electron dot structure for an element in Group 7A.

Correct AnswerverifiedAny of the following...View AnswerShow Answer

Which of the following is the correct dot structure for an atom of sulfur?

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What is the maximum number of electrons that can occupy the 4f orbitals?

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Which of the following elements is a noble gas?

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The element with the electron configuration 1s²2s²2p⁶3s²3p⁵ is

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An atom with Z = 35 and A = 80 contains protons, electrons,and neutrons.

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Any of the following...
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