Periodic Table Video,Question and Answer

What does the atomic number of an element represent?

• Number of protons in the nucleus

• Number of neutrons in the nucleus

• Number of electrons in the nucleus

• Atomic mass of the element

How are the elements arranged in the periodic table?

• By increasing atomic mass

• By increasing atomic number

• By increasing atomic radius

• By increasing ionization energy

What do the columns in the periodic table represent?

• Number of electron shells

• Number of neutrons

• Number of valence electrons

• Number of protons

What trend is observed in the atomic radius as you move down through the periods?

• The atomic radius becomes zero

• The atomic radius decreases

• The atomic radius increases

• The atomic radius remains constant

What is ionization energy in relation to an atom?

• The energy released when an electron is added to an atom

• How readily an electron can be added to an atom

• How readily an electron can be removed from an atom

• The energy released when an electron is removed from an atom

What do the periods in the periodic table display?

• Number of protons

• Number of neutrons

• Number of electron shells

• Number of valence electrons

What do the color-coded boxes in the periodic table indicate?

• Atomic mass of the element

• Number of electron shells in the element

• Type of bonding in the element

• Metal or nonmetal nature of the element

What is the significance of the transition metals in the periodic table?

• They have a variable number of valence electrons

• They have a constant ionization energy

• They have a variable number of electron shells

• They have a constant atomic radius

What is the purpose of the periodic table for scientists?

• Both A and B

• None of the above

• To predict the behavior of elements

• To determine the atomic structure of elements

How can the periodic table be beneficial to students?

• To understand the properties of elements

• None of the above

• Both A and B

• To apply it to experiments in the classroom