Molecular Structure

What is the periodic table?

• separates metals from nonmetals

• electrons in the outermost energy level

• a table that shows the elements with similar properties grouped together

• number of protons and neturons in the nucleus

What is atomic mass?

• electrons in the outermost energy level

• the number of protons in an atom

• separates metals from nonmetals

• number of protons and neutrons in nucleus

What does the Ne in this periodic table square represent?

• atomic number

• atomic symbol

• atomic mass

• scientific name

What does the number 7 represent on this periodic table square?

• atomic number

• atomic mass

• element symbol

• element name

What does the 18.998 represent in this periodic table square?

• atomic number

• atomic symbol

• atomic mass

• scientific name

How many electrons does this element have?

• 20.1797

• 10

• 11

• 10.1797

Tags

NGSS.MS-PS1-1

A _____________ is a group of atoms that are held together by chemical bonds.

• Molecule

• Substance

• Compound

• Atom

Tags

NGSS.MS-PS1-1

A _____________ occurs when atoms of two or more different elements are bonded together.

• Molecule

• Substance

• Compound

• Atom

An _____________ is a small particle that is the building block of matter.

• Molecule

• Substance

• Compound

• Atom

Tags

NGSS.MS-PS1-1

A _____________ is matter with composition that is always the same.

• Molecule

• Substance

• Compound

• Atom