UNIT II Atomic Structure

Question 1

What is the atomic structure of this element?

Accepted Answer

2 - 6

Question 2

What is the electronic configuration for Li?

Accepted Answer

1S2 2S1

Question 3

What is the Hunds rule?

Accepted Answer

Bus seat rule

Question 4

Atomic Number

Accepted Answer

24

Question 5

Correct electronic configuration for ...

Accepted Answer

1s22s22p63s23p2

Question 6

What's the electronic configuration of fluoride?

Accepted Answer

2.8

Question 7

The Uncertainty Principle was proposed by

Accepted Answer

Werner Heisenberg

Question 8

Hunds Rule states that...

Accepted Answer

e- go into empty, equal energy orbitals before pairing up.

Question 9

Who's theory of atomic structure is sometimes called the "planetary" model?

Accepted Answer

Niels Bohr

Question 10

According to the Heisenberg Uncertainty Principle.

Accepted Answer

If you know location then velocity is uncertain & vice versa

Question 11

Atomic Weight?

Accepted Answer

15.9994

Question 12

Atomic Structure vs. Ionic Structure

Accepted Answer

The Li Ion is smaller because it has Lost Electrons

Question 13

An atomic mass is

Accepted Answer

Mass of an atom

Question 14

According to Hunds rule

Accepted Answer

one electron enters an orbital at a time

Question 15

How many quantum numbers are there

Accepted Answer

4

Question 16

Which rule does the following diagram violate?

Accepted Answer

Pauli

Question 17

Atomic Mass

Accepted Answer

131.293

Question 18

What is the electronic configuration of carbon?

Accepted Answer

2,4

Question 19

What is the name of this atomic structure

Accepted Answer

A stable home for atoms, Body-Centered Cubic

Question 20

Which of the orbital diagrams violates both Hunds Rule and Pauli Exclusion Priciple?

Accepted Answer

B

Question 21

According to Hunds...

Accepted Answer

electrons need to fill all orbitals singly first b4 pairing

Question 22

What are the quantum numbers for the third electron in lithium?

Accepted Answer

n = 2, l = 0, ml = 0, ms = 1/2

Question 23

This discovery did not complete the structure of both the atom and atomic nucleus.

Accepted Answer

False

Question 24

The Uncertainty Principle was proposed by

Accepted Answer

Werner Heisenberg

Question 25

What atom has the electronic configuration of 1S2 2S2

Accepted Answer

Beryllium

Question 26

Helium has this electronic configuration?

Accepted Answer

1S2

Question 27

what does the atomic theory state

Accepted Answer

all of the above

Question 28

What is hunds rule?

Accepted Answer

find out the symbol that goes with a multi-electron atom

Question 29

What is the Atomic Number

Accepted Answer

Question 30

Which of the following is not a valid set of four quantum numbers?

Accepted Answer

1, 1, 0, +1/2

Question 31

Correct electronic configuration for ...

Accepted Answer

1s22s22p3

Question 32

Heisenberg Uncertainty Principle proposes

Accepted Answer

The variation in Y and X axis where a particle may be.

Question 33

Which rule does the following diagram violate?

Accepted Answer

Hund's

Question 34

Atomic Weight?

Accepted Answer

20.1797

Question 35

Atomic Number?

Accepted Answer

8

Question 36

What is the maximum number of quantum numbers that two electrons can share?

Accepted Answer

3

Question 37

Atomic Number is.....

Accepted Answer

protons

Question 38

Which of the following sets of quantum numbers represents the highest energy of an atom?

Accepted Answer

n = 3, l = 2,m = 1, s = +1/ 2

Question 39

According to the Aufbau Principle:

Accepted Answer

Electrons fill lowest energy levels first

Question 40

What are the four quantum numbers?

Accepted Answer

n l m s

Question 41

An atomic model that defines the atom as a ball-like structure.

Accepted Answer

Dalton's atomic model

Question 42

Correct electronic configuration for ...

Accepted Answer

1s22s22p63s23p64s1

Question 43

What are the 4 quantum numbers?

Accepted Answer

Principal, secondary, spin, magnetic quantum numbers

Question 44

What is Hunds rule?

Accepted Answer

All orbital in a subshell singly occupied with one electron

Question 45

The quantum number that represents the position of the orbitals in relation to each other.

Accepted Answer

m

Question 46

Who's theory of atomic structure is sometimes called the "nuclear" model?

Accepted Answer

Ernest Rutherford

Question 47

Atomic Symbol?

Accepted Answer

Xe

Question 48

What do the 4 quantum numbers describe?

Accepted Answer

Cloud, Energy, Shape of electron clouds

Question 49

The Aufbau principle states that...

Accepted Answer

The lowest available energy level is filled first.

Question 50

In what year did John Dalton first produce his ideas on atomic structure?

Accepted Answer

1803

UNIT II Atomic Structure

Questions 50

UNIT II Atomic Structure

Questions 50