A molecule of NH$_3$ is made of nitrogen and hydrogen, which have very different electronegativities. As part of the molecule:

- Nitrogen and hydrogen atoms are covalently bonded.
- Nitrogen and hydrogen atoms have full valence energy levels.
- Nitrogen and hydrogen atoms are joined by polar bonds.
- Nitrogen loses an electron, and hydrogen gains an electron, respectively.
- Nitrogen and hydrogen atoms are attracted to other partially charged molecules, forming hydrogen bonds.
- Nitrogen and hydrogen atoms share electrons and are joined by nonpolar bonds.

NH3, or ammonia, is composed of one nitrogen (N) atom and three hydrogen (H) atoms. In this molecule, nitrogen and hydrogen atoms are covalently bonded, meaning they share electrons to form chemical bonds.

The statement that nitrogen loses an electron and hydrogen gains an electron is incorrect. In a covalent bond, electrons are shared rather than transferred, so neither atom loses or gains electrons.

Furthermore, the statement that the atoms are attracted to other partially charged molecules, forming hydrogen bonds, is not accurate in the context of NH3. Hydrogen bonds are a specific type of interaction between molecules where a hydrogen atom is bonded to a highly electronegative atom (like nitrogen, oxygen, or fluorine) and is attracted to another electronegative atom in a different molecule. In NH3, the bonding is primarily covalent, not hydrogen bonding.

Lastly, the statement about nonpolar bonds is also incorrect. The bonds in NH3 are polar covalent bonds because nitrogen is more electronegative than hydrogen. This results in an unequal sharing of electrons, leading to partial positive and negative charges within the molecule.

In summary, NH3 is made up of nitrogen and hydrogen atoms that share electrons and are joined by polar covalent bonds.

Learn more about Covalent bonds in molecules

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