Unit 3 Test Review (PS.2b, PS.4a and PS.4b)

Where are the groups (families) on the periodic table?

An ion forms when an atom gains or loses

Isotopes are atoms of the same element that have different...

Two atoms that have different numbers of protons are... 

How are protons and neutrons similar?

Select ALL of the statements that are true for protons.

Using the graphic, determine and select the element is being represented. You will need to use a periodic table.

What elements are represented in this chemical formula? $$Fe_2O_3$$  

If an additional neutron is added to the Boron atom, select all of the changes that will occur.

A student is studying a mystery substance.

It breaks easily. It has a very dull luster. It doesn't conduct any electricity.

What is the most likely substance this is?

The same student works with a new substance.

He concludes it conducts electricity very well. It has a very shiny luster. When he hammers it, it simply dents and flattens - it is malleable.

What is the most likely substance type?

The third substance the student works with is a little brittle. It is just a little shiny.

When he tries to conduct electricity through it at first, it doesn't conduct. Upon heating up, it does start to allow electrons to flow. The student realizes it is a semiconductor.

What is the most likely substance type?

How is the periodic table arranged?

Where are the metals found on the periodic table?

What is the atomic number?

What is the atomic mass?

What do elements in the same group have in common?

What do elements in the same period have in common?

Where are the periods of the periodic table?

Where are the metalloids found on the periodic table?

How many elements are in this chemical formula?

$$H_2SO_4$$  

How many atoms of carbon (C) are in this formula? $$C_{6\ }H_{12}O_6$$