Chapter 4

Atoms

100

Protons have this charge. 

Positive

200

Electrons have this charge. 

Negative

300

True or false. Mr. Carpenter is made of atoms. 

true 

400

This is where the protons and neutrons live. 

What is the nucleus? 

500

This is where the electrons live. 

What is the electron cloud?

Elements

100

The atomic number tells you the number of this. 

What are protons?

200

The atomic mass number tells you the number of what?

Protons + Neutrons

300

Are families on the periodic table horizontal or vertical?

Vertical

400

Is the atomic mass number above or below the symbol in a cell on the Periodic Table?

Below

500

Who was the first to put together the periodic table?

Mendeleev 

(not on this test but on the midterm)

Atom History

100

This man coined the term "atomos", meaning indivisible, to describe the smallest unit of matter. 

Who is Democritus?

200

This man discovered the electron. 

Who is Thomson?

300

This man discovered the nucleus. 

Who is Rutherford?

400

This man created the Gold Foil Experiment. 

Who is Rutherford?

500

This scientist's work led to the Law of Conservation of Mass. 

Who is Dalton?

Isotopes

100

This is the name of an atom of an element that has a different number of neutrons. 

What is an isotope?

200

Isotopes have the same number of ________. 

Protons

300

What is the isotope name of ¹⁵₈O?

Oxygen-15

400

Write in shorthand

6 protons, 8 neutrons

¹⁴₆ C

500

How many neutrons does Neon-21 have?

11