Atoms, Elements, and the Periodic Table

What part of the atom contains two charges, the protons and neutrons? 

• atom
• electron cloud
• nucleus

What charge is negative? 

• proton
• neutron
• electron
• nucleus

What do scientists use to help us better understand the atom? 

• clouds
• models
• charges

Which is true about electrons? 

• They are positively charged particles inside the nucleus. 
• They are negatively charged particles in the nucleus. 
• They are negatively charged particles outside of the nucleus. 
• They are found outside of the atom. 

Why is it misleading to say the atom is the smallest piece of matter? 

• there are other particles inside of the atom
• scientists are still conducting research to determine if this is true
• the smallest piece of matter is the atom. 

What is the simplest form of a substance? 

• atom
• compound
• element
• periodic table 

How can we identify an element? 

• based on its atomic number only
• based on its location on the periodic table and its atomic number 
• by seeing how it reacts to other substances. 
• by its reaction to water

Which metallic property is this true about: malleable? 

• metal
• nonmetal 
• metaloid

Which metallic property is this true about: not a good conductor of heat and/or electricity? 

• metal 
• nonmetal
• metalloid

Which metallic property is this true about: usually brittle 

• metal 
• nonmetal
• metalloid