Periodic table

Which describes how elements are arranged in the periodic table?

• by increasing atomic mass

• by increasing atomic number

• by chemical name

• by chemical symbol

Which phrase BEST describes the periodic table?

• An arrangement of approximately 100 elements organized in groups and families

• Approximately 100 elements classified as metals, nonmetals, and compounds

• An arrangement of all elements that are metals

• Approximately 100 elements arranged in order of increasing mass

Which element is the most reactive?

• Silicon

• Oxygen

• Lithium

• Aluminum

Which two elements share similar properties?

• Oxygen and Sulfur

• Oxygen and Nitrogen

• Oxygen and Helium

• Oxygen and Chlorine

Which is NOT true about all of these elements?

• They are all in the same group

• They all have the same number of valence electrons

• They all have the same number of protons

• They all share similar properties

𝐶6𝐻12𝑂6 is the chemical formula for glucose, a type of sugar. Which statement is TRUE about glucose?

• Glucose is a compound, because it is made of more than one element.

• Glucose is an element, because it can be separated into smaller components.

• Glucose is an element, because it is made up of more than one kind of atoms.

• Glucose is a compound, because it is made of protons, neutrons, and electrons.

Tags

NGSS.MS-PS1-1

Which property differentiates metalloids from metals and nonmetals?

• Metalloids are much shinier than nonmetals and metals.

• Metalloids can have properties of metals and nonmetals

• Metalloids are more reactive than metals and nonmetals.

• Metalloids conduct less heat and electricity than nonmetals and metals.

Which property is directly used by chemists to group elements on the periodic table?

• density

• opacity

• light sensitivity

• metallic nature

Atoms of the elements in the periodic table can bond with one another in a wide range of ways to produce small or large molecules. These molecules can then break apart, allowing the atoms to form new molecules. In this context, what are the elements of the periodic table MOST like?

• a library full of books

• a paragraph in an essay

• the letters of the alphabet

• the picture on a magazine cover

Tags

NGSS.MS-PS1-1

Based on the periodic table of elements, which of the following sets of elements have similar properties?

• O,S,Y

• Cl, Br, I

• Ne, N, O

• Pb, Sn, Kr