Which of the following best explains why NaCl forms an ionic bond?

Sodium donates an electron to chlorine, resulting in oppositely charged ions.

Both atoms share electrons equally.

Both atoms have similar electronegativities.

A molecule of ammonia (NH $$_3$$ ) is formed by sharing electrons between nitrogen and hydrogen atoms. Explain why this is considered a covalent bond and not an ionic bond.

Because electrons are shared between nitrogen and hydrogen.

Because electrons are transferred from nitrogen to hydrogen.

Because hydrogen is a noble gas.

A student is asked to model the bonding in magnesium oxide (MgO). Describe the process by which the bond forms and explain why the resulting compound is stable.

Magnesium donates two electrons to oxygen, forming Mg $$^{2+}$$ and O $$^{2-}$$ ions; the compound is stable due to electrostatic attraction between oppositely charged ions.

Magnesium shares electrons with oxygen, forming a covalent bond; the compound is stable because both atoms achieve a full outer shell.

Oxygen donates electrons to magnesium, forming a metallic bond; the compound is stable because of delocalized electrons.

Both atoms share electrons equally, forming a nonpolar covalent bond; the compound is stable due to equal sharing.

Given the following ions: Fe $$^{3+}$$ and PO $$_4^{3-}$$ , use bonding models to predict the chemical formula for the resulting compound and justify your answer.

FePO $$_4$$ , because the charges balance in a 1:1 ratio.

Fe $$_3$$ (PO $$_4$$ ) $$_2$$ , because three Fe $$^{3+}$$ ions are needed for two PO $$_4^{3-}$$ ions.

Fe $$_2$$ (PO $$_4$$ ) $$_3$$ , because two Fe $$^{3+}$$ ions are needed for three PO $$_4^{3-}$$ ions.

Fe(PO $$_4$$ ) $$_3$$ , because one Fe $$^{3+}$$ ion is needed for three PO $$_4^{3-}$$ ions.

Match the description of bonds to their name:

An association between a metal that has given up and electron to a non-metal that has accepted that electron

When two non-metals share electrons between them

When two metals assicate with each other.

Exploring Ionic And Covalent Bonds

Exploring Ionic and Covalent Bonds

Authored by Rebecca L Imre

Science

10th Grade

GA covered

Used 6+ times

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MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Which type of bond involves the complete transfer of electrons from one atom to another?

Covalent bond

Ionic bond

Polar bond

Metallic bond

Tags

GA.SC2.d.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Cl $_2$

NaCl

H $_2$ O

O $_2$

Tags

NGSS.MS-PS1-1

10.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

What is the empirical formula for hydrogen peroxide?

H $_2$ O

H $_2$ O $_2$

H $_3$ O

Tags

GA.SC2.f.

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