Chemical bonds

Atoms gain lose, gain, or ______electrons to get a stable outer energy level.

• share
• split
• create
• destroy

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A ____________is the force that holds atoms together in a compound.

• Chemical Formula
• Chemical Reaction
• Chemical Bond
• Synthesis Reaction

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-4

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

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The result of this bond is a _________compound.

• neutral
• polar
• positively charged
• negatively charged

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Tags

NGSS.HS-PS1-1

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

Tags

NGSS.HS-PS1-2

How many valence electrons does Boron have?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionic bonds are between

• metals and nonmetals

• 2 metals

• 2 nonmetals

Tags

NGSS.HS-PS1-2

Metals make _____ ions.

• positive

• negative

• neutral

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When an ionic bond is formed, electrons are _____.

• gained

• lost

• shared

• gained or lost

Tags

NGSS.HS-PS1-7