Atoms, elements and compounds

Atoms combine to form _______. 

• electrons
• molecules
• nuclei
• neutrons

Tags

NGSS.MS-PS1-1

Which part of an atom is POSITIVELY charged?

• protons
• neutrons
• electrons
• atoms

What part of an atom is NEGATIVELY charged?

• protons
• neutrons
• electrons
• atoms

Tags

NGSS.MS-PS1-1

Which part of an atom has no charge?

• protons
• neutrons
• electrons
• atoms

How many elements are in C₆H₁₂O₆?

• 1

• 2

• 3

• 6

Tags

NGSS.MS-PS1-1

This is a one or two letter representation of each element that is generally close to the element's name. The first letter of this will ALWAYS be capitalized.

• chemical symbol

• chemical number

• atomic number

• atomic mass

The smallest particle of any element that still has the properties of that element is called

• an atom
• a compound
• a solution
• a mixture

Tags

NGSS.MS-PS1-1

What is the role of an electron in an atom?

• live inside the nucleus and carry a neutral charge
• circle the nucleus and have a positive charge
• live inside the nucleus and have a negative charge
• circle the nucleus and have a negative charge

Which of the following is a chemical symbol?

• H₂O

• O

• NaCl

• FeO

Which of the following is a chemical formula?

• H₂SO₄

• Si

• Hg

• C

Tags

NGSS.MS-PS1-1