Ions, Isotopes, Compounds and Bonds

Ions, Isotopes, Compounds and Bonds

Multiple Choice

Changing the number of neutrons changes the element.

• True

• False

Multiple Choice

Atoms of the an element that contain different numbers of Neutrons are know as...

• Ions

• Protons

• Isotopes

• Carbon

Chlorine Gas

Sodium

Open Ended

What do you think you get when you combine deadly Chlorine and reactive Sodium chemicly?

Multiple Choice

Contains two or more atoms chemically combined Ex. O₂

• Molecule

• Atom

• Compound

• Electron

Multiple Choice

Contains two or more different elements chemically combined Ex. NaCl or H₂O

• Molecule

• Atom

• Compound

• Electron

Multiple Choice

CO₂ is a compound.

• True

• False

Multiple Choice

CO₂ is a Molecule.

• True

• False

Multiple Choice

N₂ is a Molecule.

• True

• False

Multiple Choice

N₂ is a Compound.

• True

• False

Multiple Select

Which of the following are molecules?

• N₂

• CO2

• H2O

• C₆H₁₂O₆

Multiple Select

Which of the following are compounds?

• N₂

• CO2

• H2O

• C₆H₁₂O₆

Multiple Choice

An atom that has gained or lost an electron is known as a ...

• Proton

• Isotope

• Ion

• Carbon

Multiple Choice

Why do elements bond?

• To be friends
• To create a new element
• To become stable

Multiple Choice

What is a valence electron?

• The sum of neutrons and protons.
• The # of electrons in the last shell.
• A type of bond.
• A popular compound.

Multiple Choice

How are covalent bonds formed?

• Sharing of electrons
• Transfer of electrons

Multiple Choice

A ________is the force of attraction between atoms sharing electrons.

• Synthetic Bond
• Ionic Bond
• Molecular Bond
• Covalent Bond

Multiple Choice

An ionic compound is held together by the _______--the force of attraction between opposite charges of the atoms.

• Covalent Bond
• Ionic Bond
• Synthetic Bond
• Molecular Bond

Multiple Choice

A _______ is a charged particle because it has more or fewer electrons than protons.  When an atom _____ an electron, it becomes a positively charged ion.  When an atom ____an electron, it becomes a negatively charged ion.

• isotope, gains, loses
• isotope, loses, gains
• ion, loses, gains
• ion, gains, loses