Bohr Models
Valence electrons
Groups & Periods
Metals, Non-Metals & Metalloids
Miscellaneous
1

I am in period 4 in the same group as this atom...


Kr

1

I have 4 valence electrons and 5 energy levels.

Sn

1

I am in the same period as Carbon but have 1 more proton. 

N

1

I am the only metalloid in group 13

Boron

1

I have 3 electron shells and I do not react with other elements in nature.

Argon

2

What element is this Bohr Model showing?


Carbon

2
I have 2 valence electrons and 4 shells.

Ca

2

I live in PERIOD 2, GROUP 17

Flourine 

2

I am the only metalloid with 6 valence electrons

Te

2

I am an element used to make water in group 16.

O

3

Who would I react with in the same period as me?


P

3

What is the only element with a full valence shell of 2 valence electrons?

He

3

I have the same valence electrons as Mg and I am in period 2.

Beryllium

3

I am a metal with 2 shells

Li

3

This metal is in the same group as Potassium (K), but is more reactive:

Is this Na or Rb?

Rb

4

What element am I?


Se

4

I am the first metal with 3 valence electrons.

Al

4

I have 2 shells and I am a noble gas (group 18).

Ne

4

I am the only metalloid with 3 energy levels

Si

4

I am Chlorine - who would I want to react with that is in the same period (3) as me?

Na

5

I am in period 5 and group 13. Who am I?


In

5

Rubidium (p = 37) reacts with which element in the same period? 

I

5

I am an element in the 3rd period and the same family (group) as Bromine.

Cl

5

What is the only non-metal on the left side of the PT?

Hydrogen

5

Which element is more reactive? 


Mg

M
e
n
u