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Electron configuration and trends

Total questions: 20

Worksheet time: 47mins

Name
Class
Date
1.
Which of these sequences do not show the correct trend in ionization energy?
a)
Al<Si< P<Cl
b)
Be<Mg<Ca<Sr
c)
I<Br<Cl<F
d)
Na<Mg<Al<Si
2.
From the following elements, which has the highest electronegativity?
a)
Na
b)
Mg
c)
Si
d)
Cl
3.
What is the electron configuration for Arsenic?
a)
1s2 2s2 2p6 3s2 3p6 4s2 4p3
b)
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
c)
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3
d)
1s2 2s2 2p6 3s2 3p6 4s2 4d10 4p3
4.
Which element has a noble gas configuration of [Ne] 3s2 3p3?
a)
Magnesium
b)
Phosphorus
c)
Aluminum
d)
Sulfur
5.
Which element has the following electron configuration: [Ar] 4s2 3d10 4p4?
a)
Bromine
b)
Gold
c)
Iodine
d)
Selenium
6.
Which element has the electron configuration, 1s2 2s2 2p6 3s2 3p6 4s23d10?
a)
Phosphorus
b)
Zinc
c)
Potassium
d)
Copper
7.
Which element requires the LEAST amount of energy to remove the most loosely held electron from a gaseous atom in the ground state?
a)
Gold
b)
Bromine
c)
Lithium
d)
Beryllium
8.
What is the trend of atomic radius? 
a)
Atomic radius decreases from Titanium to Zinc
b)
Atomic Radius increases from Barium to Beryllium
c)
Atomic radius decreases from Nickel to Gold
d)
Atomic Radius increases from Chromium to Fluorine
9.
Which statement describes the general trends in electronegativity and metallic properties across Period 3 moving from left to right? 
a)
Electronegativity increases and metallic properties decrease.
b)
Electronegativity decreases and metallic properties increase.
c)
Both electronegativity and metallic properties increase.
d)
Both electronegativity and metallic properties decrease.
10.

What is the chemical family for Iron (Fe)?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Transition Metals

d)

Halogens

11.

What is the chemical family for Fluorine (F)?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Transition Metals

d)

Halogens

12.

What is the chemical family for Potassium (K)?

a)

Noble gases

b)

Halogens

c)

Transition Metals

d)

Alkali Metals

13.

This Lewis dot structure for Oxygen is accurate

a)

True

b)

False

14.

This Lewis dot structure for Nitrogen is accurate

a)

True

b)

False

15.

If an atom of Fluorine has 10 neutrons, which of the following is FALSE?

a)

The mass number is 19.

b)

There are 10 total electrons.

c)

There are 7 valence electrons.

d)

There are 9 protons.

16.

Name this element.

a)

Argon

b)

Chlorine

c)

Aluminum

d)

Boron

17.

Which is the electron configuration for an Oxygen (O) atom?

a)

1s22s22p63s23p64s2

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p6

18.

What is this element?

1s22s22p63s23p6

4s23d104p6

a)

Argon (Ar)

b)

Krypton (Kr)

c)

Selenium (Se)

d)

Bromine (Br)

19.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
20.

Which family is the LEAST reactive on the Periodic Table?

a)

Alkali metals

b)

Alkali earth metals

c)

Halogens

d)

Noble gases

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