Honors Chemistry Electron Configuration Review

How many electrons are in each energy level in a sulfur atom in the ground state?

2, 8, 6

Which sample contains a total of 6.0 × 1023 atoms?

23g of Na

In which energy level are the valence electrons of the elements in Period 2 found?

2

If three electrons occupy a "p" sublevel, how will the electrons be distributed over the three orbitals?

one election in each orbital

Which atom in the ground state has five electrons in its highest occupied energy lever and ten inner-shed cicerons?

P

Which of the following is an INCORRECT desionation for an atomic orbital (cannot exist, even theoreticaly)?

1p

the number of occupied subleveis in the third energy level of a zine atom in the ground state is

3

if 10 units of energy move an electron to a higher energy level, how much energy is released when the electron returns to its ground state?

10 units

The modern model of the atom shows that electrons are

found in regions called orbitals

according to the electron cloud model of the atom, an orbital is

region of the most probable electron location

What is the total number of electrons in an Ma^+2? ion?

10

Diagram 1 represents, an atom of hydrogen, showing the nucleus and the electron in toe first energy level.

What is represented by Diagram 2?

an atom of hydrogen in an excited state

What is the structure of a krypton 85 atom?

36 electrons, 36 protons, 49 neutrons

in what group of elements do most atoms have completely filled s and p valence sublevels?

noble gasses

which of the following orbitals are spherical

2s

When an atom loses an evcctron, the atom occomes an Ion that is

positively charged and loses a negligible amount of mass

All of the atoms of the clements in Peniod 2 have the same number of

occupied energy levels

Which element could have the following HOEL orbital notation? select al that apply.

(UP, DOWN) S

Calcium and Silicon

Which orbital notation shows the arrangement of valence electrons for phosphorous?

3s (UP DOWN) 3p (UP, UP, UP)

If n = 3, which of the following values for i(2nd quantum number) Is NOT possible?

3

Which of the following has the highest energy?

7s

The correct clectron configuration for indium (In - atomic number 49) is (Look closely. All answers are different from each other.)

1s² 2s² 2p^6 3s² 4s² 3d^10 4p^6 5s² 4d^10 5p^1

How many electrons can be described by the quantum numbers n = 3,1 = 3, and m = 12|

0

How many elcctrons in an atom can have the quantum numbers n = 3 and i = 2

10

How many of the following configurations for the elements in thele ground state are correct?

(Table)

2

Which of the following sets of quantum numbers is NOT allowed?

(Table)

(C)

Which of the following is INCORRECTLY palred?

Hertz - s

Which electron dot diagram represents an atom of chlorine in the ground state?

7 dots

What is the correct electron dot diagram for the element sulfur?

6 dots

Which of the following is a possible configuration for an element with the electron dot diagram pictured below?

(X with 5 dots)

(B)

Which of these noble gas configurations is correct?

(Kr, Xe, Ar)

I and III

What is the noble gas contiguration for Cadmium (Cd)?

[Kr] 5s²4d^10

The element with the electron configuration

1s²2s²2p^6(3s²)2p^6(4s²)3d^7

transition metal

what is the electron confidguarion of an atom of a period 3 element

1s² 2s² 2p^6 (3s^1)

which of the following has the shortest wavelength

x-rays

microwaves and x-rays have the same

speed

what is the wavelength of a photon and type of electromagnetic radiation emitted from hydrogen atom from the 5th energy level to the 2nd energy level

434 mm; visible light

what is the highest occupied energy level in an atom of silver (Ag) in teh ground state

5

what is the HOEL in a carbon atom in ground state

2

which of the following is the electron configuration of a neutral atom in the ground state with six valadce electrons

1s² 2s² 2p^4

Which staternent descobes how an aton in the around stato becomes excitca

Tine atom absorbs energy, and one or more electron move to a higher energy level

How many orbitals are contained in the 4th energy lever?

16

maximum amount of electrons in the 3rd energy level

18

number of orbitals in sublevel d

5

how many orbitals in the 3rd energy level

9

in neon, when is light green given off

when electrons return to their ground state

The bright line spectrum of an element is produced when, after atoms of elements become excited, they

emit photons having certain wavelength

large open ended question

1.433 × 10^19

H subscript z

2.09 × 10^-11

m

x-rays