Intro to Chem Check

Atoms that have the same number of protons, but different neutrons are... 

• ions
• atoms
• isotopes
• none of these 

How are the elements arranged on the Periodic Table?

• Alphabetical order by name
• Increasing Mass
• Increasing Atomic number
• Alphabetical order by symbol 

What is the function of the proton? 

• controls mass
• controls charge
• defines the element
• none of the above 

What element is in period 4, group 13?

• Al

• Y

• Ga

• none of the above

What does the period number tell you about an atom? 

• Number of valence electrons
• Number of electrons
• Number of energy levels
• Type of element it is 

What does the group number tell you about an atom? 

• How reactive it is. 
• The number of energy levels. 
• Number of valence electrons
• What type of element it it 

What is the atomic number of this isotope? 

• 6
• 14
• 8
• none of these 

How many neutrons does this isotope of Carbon have? 

• 6
• 14
• 8
• none of these 

Where are most nonmetals located on the PT?

• top right

• left

• middle

• at the very bottom

Which family of metals is the most reactive?

• alkali metals

• alkaline earth metals

• transition metals

• actinides