Quiz: Unit 7 Lesson 3 (The Periodic Table)

What is the definition of metalloid?

• A metalloid is a type of metal that is highly conductive.
• A metalloid is an element that is completely nonmetallic.
• A metalloid is an element that can only exist in gaseous form.
• A metalloid is an element with properties of both metals and nonmetals.

Properties of elements within a ________ on the periodic table change in a predictable way from one side of the table to the other.

• block
• group
• row
• period

What is the purpose of the zigzag line on the periodic table?

• To separate metals from nonmetals.
• To represent the states of matter at room temperature.
• To indicate the atomic number of elements.
• To show the electron configuration of elements.

What is the significance of the vertical columns on the periodic table?

• The vertical columns represent groups of elements with similar chemical properties.
• The vertical columns indicate the atomic number of elements.
• The vertical columns show the number of protons in each element.
• The vertical columns categorize elements based on their physical state.

The ____________ for iron is FE.

• compound
• chemical symbol

• atomic number
• element

What does the #32.07 stand for in the periodic element square?

• Atomic mass of the element.
• Melting point of the element.
• Density of the element.
• Element's atomic number.

1. What is the definition of an atom?

• An atom is the smallest unit of matter that retains the properties of an element.
• An atom is a form of energy that can be harnessed.
• An atom is a large particle made of protons and neutrons.
• An atom is a type of molecule.

Tags

NGSS.MS-PS1-1

What is the significance of the atomic mass of an element?

• Atomic mass is irrelevant to chemical reactions.
• Atomic mass is only important for metals.
• The atomic mass represents the average mass of an atom of the element.

• Atomic mass determines the color of an element.

Tags

NGSS.MS-PS1-5

1. What is the definition of a metal?

• A metal is a liquid that is soft and a poor conductor of electricity.
• A metal is a type of gas that is invisible and has no weight.
• A metal is a solid that is dull, brittle, and an insulator of heat.
• A metal is a solid material that is hard, shiny, malleable, and a good conductor of electricity and heat.

What does the #13 on the periodic element square stand for?

• The number of electrons in an aluminum atom.

• The atomic number of aluminum.
• The atomic weight of aluminum.
• The mass number of aluminum.

Tags

NGSS.MS-PS1-1