TEST_DE_Chem_2.3_ElectronRepresntations - Nicholas Meyer | Biblioteka

1

For the element oxygen, which of the following orbitals will be involved in bonding?

1s

2s

2p

3p

1

Using the orbital diagram below, which of the following elements does it describe?

Si

O

F

Xe

1

What word is used to describe electrons in the outermost energy level?

ionic

orbital

covalent

valence

1

With the given orbital diagram, which of the following is true?

The orbital diagram violates Hund's rule

The 3p orbitals are filled

none of the above

The 2s orbitals are filled

1

What does an orbital diagram tell about a given element?

the number of electrons in a given atom

the relative energetic position of each electron

the number of occupied orbitals in an atom

1

Which of the following four letters does NOT represent an orbital?

s

g

d

p

1

The given orbital diagram is written incorrectly. Why?T

The number of electrons used is incorrect

The orbital diagram violates Hund's rule

The orbitals are not in the correct sequence

none of the above

1

Which of the following four choices best describes the octet rule?

Elements will typically react if they have less than eight electrons in their valence shell

Orbitals fill one electron at a time

Elements always have eight electrons in their valence shell

No more than two electrons can share an orbital

1

Generally, as one goes across the periodic table from left to right, which of the following is true about electron configurations.

The number of valence electrons in the last orbital increases

The electron configuration remains the same.

The energy level of the orbitals decreases

The types of orbitals in an atom remain the same

1

Which of the following Lewis structures for sulfur is written correctly?

A

B

C

D

1

Which of the following Lewis structures describes an element in Group 1 of the periodic table?

A

B

C

D

1

What does the superscript number in the electron configuration describe?

the number of electrons in the orbital

the shape of the orbital

all of the above

the energy level of the orbital

1

Why are noble gases non-reactive?

they have atoms which are bonded to one another

they are ionic in nature

none of the above

their valence orbitals are completely occupied

1

How is the direction of the electron's spin described in an orbital diagram?

none of the above

a plus or minus sign

an arrow pointing horizontally

an arrow pointing vertically

1

Electrons fill the orbitals in the following order:

1s, 2s, 2p, 3s, 3p, 3d, 4s, 4p, 4d, 4f, 5s, 5p, 5d, 5f, 6s, 6d, 6p,7s,7p.

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p.