Describe the transfer of electrons in each combination: K + F

• K donates one electron to F, forming K+ and F- ions.

• K accepts one electron from F, forming K- and F+ ions.

• K and F share electrons equally, forming a covalent bond.

• K and F do not interact, remaining as neutral atoms.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Describe the transfer of electrons in Mg + I

• Mg transfers two electrons to two I atoms, forming Mg²⁺ and 2I^-

• Mg shares electrons with I, forming a covalent bond

• Mg gains electrons from I, forming Mg^-2 and I⁺

• Mg and I do not react with each other

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Describe the transfer of electrons in Be + S

• Be transfers 2 electrons to S, forming Be²⁺ and S^2-

• Be shares electrons with S, forming a covalent bond

• Be gains 2 electrons from S, forming Be^2- and S²⁺

• Be and S do not transfer electrons, remaining neutral

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Describe the transfer of electrons in : Na + O

• Na donates one electron to O, forming Na+ and O- ions.

• Na donates two electrons to O, forming Na2+ and O2- ions.

• Na accepts one electron from O, forming Na- and O+ ions.

• Na and O share electrons equally, forming a covalent bond.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Describe the transfer of electrons in : Al + Br

• Aluminum donates three electrons to three bromine atoms, forming AlBr3.

• Aluminum donates one electron to one bromine atom, forming AlBr.

• Aluminum donates two electrons to two bromine atoms, forming AlBr2.

• Aluminum shares electrons with bromine atoms, forming a covalent bond.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Identify each compound as ionic (metal + nonmetal), covalent (nonmetal + nonmetal), or both (compound containing a polyatomic ion): CaCl₂

• Ionic

• Covalent

• Both

• Metallic

Identify each compound as ionic (metal + nonmetal), covalent (nonmetal + nonmetal), or both (compound containing a polyatomic ion): CO₂

• Covalent

• Ionic

• Both

• Metallic

Tags

NGSS.HS-PS1-1

Identify each compound as ionic (metal + nonmetal), covalent (nonmetal + nonmetal), or both (compound containing a polyatomic ion): H₂O

• Covalent

• Ionic

• Both

• Metallic

Tags

NGSS.HS-PS1-1

Identify each compound as ionic (metal + nonmetal), covalent (nonmetal + nonmetal), or both (compound containing a polyatomic ion): BaSO₄

• Both

• Ionic

• Covalent

• Neither

Identify each compound as ionic (metal + nonmetal), covalent (nonmetal + nonmetal), or both (compound containing a polyatomic ion): K₂O

• Ionic

• Covalent

• Both

• Metallic