Chemistry Review

An element’s atomic number tells you the number of

• Protons and neutrons
• Protons and electrons
• Neutrons and electrons
• None of the above

An atom’s nucleus is made of

• Protons and neutrons
• Protons and electrons
• Neutrons and electrons
• None of the above

Tags

NGSS.MS-PS1-1

Some chemical symbols do not match the name. This is because the symbols’ root word comes from which language?

• English
• French
• Greek
• Latin

What charge do protons have?

• Negative
• Neutral
• Positive
• None of the above

What charge do neutrons have?

• Positive
• Neutral
• Negative
• None of the above

Which of the sub-atomic particles are so small that they are not included in the atomic mass?

• Protons
• Neutrons
• Electrons
• Nucleus

Which of the following is the correct way to write the symbol for chlorine?

• CL
• Cl
• cL
• cl

The periods (horizontal groups) on the periodic table tell you the number of

• Electron shells
• Valence electrons
• Protons
• Electrons

Which group on the periodic table has full electron shells?

• Alkali metals
• Alkaline Earth metals
• Halogens
• Noble gases

When a magnesium atom loses two protons, it becomes

• A positive ion (cation)
• Isotope
• A different element
• A negative ion (anion)