Exam #3 Review

What is the smallest part of a substance that retains the properties of the substance?

• Atom
• Molecule
• Element

Which subatomic particle is NEUTRAL and found INSIDE the nucleus?

• Proton
• Neutron
• Electron

Which subatomic particle is POSITIVELY charged and found INSIDE the nucleus?

• Proton
• Neutron
• Electron

Which subatomic particle is NEGATIVELY charged and found OUTSIDE the nucleus?

• Proton
• Neutron
• Electron

Which two subatomic particles are found INSIDE an atom's nucleus?

• Protons & neutrons
• Neutrons & Electrons
• Electrons & Protons

An element's atomic number tells you its number of _____________.

• Protons
• Neutrons
• Electrons

Isotopes of an element have the same numbers of PROTONS but different numbers of ________________.

• Protons
• Neutrons
• Electrons

When calculating the mass number of an atom, you should add together the numbers of:

• Protons & neutrons
• Neutrons & Electrons
• Electrons & Protons

Which of the following elements is in PERIOD 4?

• Element #40, Zirconium (Zr)
• Element #34, Selenium (Se)
• Element #87, Francium (Fr)

Which of the following elements is in GROUP 2?

• Element #3, Lithium (Li)
• Element #20, Calcium (Ca)
• Element #58, cerium (Ce)