Question

9/25/25, 9:15 am exam 1 28. part a which of the following is chemically inert (unreactive)? oxygen (atomic number 8) neon (atomic number 10) sodium (atomic number 11) carbon (atomic number 6) 29. part a lithium has an atomic number of 3. how many electrons are there in the outermost (valence) shell? one two three zero 30. part a what type of chemical bond can form between an atom with 11 protons and an atom with 17 protons? non - polar covalent polar covalent ionic hydrogen 31. part a chemical properties are determined primarily by neutrons. true false 32. part a the sharing of electrons in covalent bonds makes them stronger than ionic and hydrogen bonds. true false 33. part a hydrogen bonds are too weak to bind atoms together to form molecules, but they do hold different parts of a single large molecule in a specific three - dimensional shape. true false

Explanation:

• For question 28: Neon has a full outer - shell electron configuration, making it chemically inert. Oxygen, sodium, and carbon are reactive as they have incomplete outer shells.
• For question 29: Lithium (atomic number 3) has an electron configuration of 2,1. So, it has one electron in its outermost (valence) shell.
• For question 30: An atom with 11 protons is sodium (Na) and an atom with 17 protons is chlorine (Cl). Sodium donates an electron to chlorine to form an ionic bond.
• For question 31: Chemical properties are determined primarily by electrons, especially valence electrons, not neutrons.
• For question 32: Covalent bonds are not always stronger than ionic and hydrogen bonds. The strength depends on various factors.
• For question 33: Hydrogen bonds are too weak to bind atoms together to form molecules but can hold different parts of a single large molecule in a specific three - dimensional shape.

Answer:

1. neon (atomic number 10)
2. one
3. ionic
4. False
5. False
6. True