Groups and Families Periodic Table

Which group of elements is known for being the least reactive?

• Alkali metals

• Noble gases

• Halogens

• Transition metals

What is the common property of elements in the same group?

• They have the same atomic mass.

• They have similar chemical properties due to the same number of valence electrons.

• They are all gases at room temperature.

• They have identical physical properties.

Which element has fewer valence electrons than Aluminum (13)?

• Cesium (55) has 1 valence electron.

• Carbon (6) has 4 valence electrons.

• Oxygen (8) has 6 valence electrons.

• Silicon (14) has 4 valence electrons.

What is the general trend of reactivity in alkali metals as you move down the group?

• Reactivity decreases as you move down the group.

• Reactivity remains constant as you move down the group.

• Reactivity increases as you move down the group.

• Reactivity fluctuates as you move down the group.

What is the role of metalloids in the periodic table?

• They are only found in the gaseous state.

• They have properties of both metals and nonmetals and are used in semiconductors.

• They are exclusively used in the production of metals.

• They are the most reactive elements in the periodic table.

What is the reactivity trend of nonmetals as you move down a group?

• Reactivity increases as you move down a group for nonmetals.

• Reactivity remains constant as you move down a group for nonmetals.

• Reactivity decreases as you move down a group for nonmetals.

• Reactivity fluctuates as you move down a group for nonmetals.

What are groups 3 - 12 on the periodic table called?

• Alkali metals

• Noble gases

• Transition metals

• Halogens

What is the atomic number of an element?

• The number of neutrons in the nucleus of an atom.

• The number of protons in the nucleus of an atom.

• The total number of electrons in an atom.

• The mass of an atom measured in atomic mass units.

What is the significance of the periodic table's group number?

• It indicates the atomic mass of the elements in that group.

• It shows the number of protons in the nucleus of the elements.

• It indicates the number of valence electrons and similar chemical properties.

• It represents the total number of elements in the periodic table.

What is the difference between metals and nonmetals in terms of conductivity?

• Metals are poor conductors of electricity, while nonmetals are good conductors.

• Both metals and nonmetals are good conductors of electricity.

• Metals are good conductors of electricity, while nonmetals are poor conductors.

• Metals and nonmetals have the same level of conductivity.