Periodic Table Lesson

Multiple Choice

Which of the following is NOT a basic part of an atom?

• Proton

• Neutron

• Electron

• Molecule

Multiple Choice

Which subatomic particle is negatively charged and located outside the nucleus?

• Electron

• Proton

• Neutron

• Photon

Multiple Select

Which of the following statements about valence electrons are correct?

• They are found in the outermost shell of an atom.

• They determine the element's reactivity.

• They are always paired.

• They participate in forming chemical bonds.

Multiple Choice

Which property is NOT a characteristic of metals according to the periodic table classification?

• Low melting point

• Shiny luster

• Good conductor of electricity

• High density

Multiple Choice

Which of the following is NOT a property of nonmetals as described in the periodic table classification?

• No luster (dull appearance)

• Good conductor of heat and electricity

• Brittle (breaks easily)

• Low density

Multiple Choice

Which of the following objects is best classified as a metalloid?

• Shiny new Yeti cup

• Carbon in your pencil lead

• Silicon used in microprocessors in cell phones

• Helium in a balloon

Multiple Choice

Which statement about periods on the periodic table is correct?

• Periods are columns numbered from 1-18.

• Periods are rows numbered from 1-7.

• Elements in the same period have similar chemical properties.

• Atomic number decreases from left to right.

Multiple Choice

Which group on the periodic table is the most reactive?

• Group 1

• Group 2

• Group 17

• Group 18

Multiple Select

Which of the following are names of groups or families on the periodic table?

• Alkali metals

• Noble Gas family

• Carbon family

• Transition metals

Multiple Choice

What do all elements in the same group (column) of the periodic table have in common?

• They have the same number of valence electrons.

• They have the same atomic mass.

• They have the same number of protons.

• They have the same number of neutrons.

Multiple Choice

What is the main factor that determines the reactivity of an atom?

• The number of protons in the nucleus

• The number of neutrons in the nucleus

• The number of valence electrons

• The atomic mass

Multiple Select

Which of the following statements about stable atoms are correct?

• They have a full outer energy level of electrons.

• They are usually found in Group 8A of the periodic table.

• They are highly reactive with other atoms.

• Helium is an exception as it is stable with only two valence electrons.

Multiple Choice

Why does hydrogen bond with itself to become stable?

• It needs to lose electrons to become stable.

• It needs to gain one electron to fill its outer shell.

• It needs to share electrons so both atoms have two electrons in their outer shell.

• It needs to have eight electrons in its outer shell.

Multiple Choice

Why is the water molecule (H2O) sometimes called the 'Mickey Mouse Molecule'?

• Because its structure resembles Mickey Mouse's head and ears

• Because it is found in Disneyland

• Because it is a cartoon molecule

• Because it is unstable

Multiple Choice

What did Dmitri Mendeleev do to help organize the elements, and why was his approach significant for the development of the periodic table?

• He arranged elements by atomic number, which revealed repeating patterns in properties.

• He grouped elements by color, which made the table visually appealing.

• He organized elements alphabetically, making them easier to find.

• He listed elements by their melting points, which helped in industrial applications.