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Atoms and Bonding

Total questions: 15

Worksheet time: 13mins

Name
Class
Date
1.

It is a form of matter that has a definite composition and distinct properties.

(a)  

2.

It is a combination of two or more substances in which the substances retain their distinct identities.

(a)  

3.

(a)   is the smallest particle of an element.

4.

Isotopes are atoms with the same number of protons but different number of (a)   .

5.

He arranged the known elements in order of increasing atomic weight.

(a)  

6.

What is the maximum electron holding capacity of p orbital?

(a)  

7.

What is the maximum electron holding capacity of d orbital?

(a)  

8.

Forces that hold groups of atoms together and make them function as a unit.

(a)  

9.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
10.

Identify the rule that is being violated

a)

Aufbau's Principle

b)

Hund's Rule

c)

Pauli's Exclusion Principle

d)

Heisenberg uncertainty principle

11.

Which rule is violated in the following orbital diagrams?

a)

Aufbau Principle

b)

Hund's Rule

c)

Pauli's Exclusion Principle

12.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
13.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
14.

In 1s2, the 1 means

a)

there is 1 electron

b)

the electrons are in the 1st energy level

c)

the shape is circular

d)

there is a -1 charge

15.

Which are the four atomic orbitals?

(a)