Question 5

Two of most unique elements on the periodic table are hydrogen and helium. What makes them so unique and removed from the other groups on the periodic table?

a
Unlike all other elements, hydrogen and helium are gases
b
Unlike all other elements, hydrogen and helium are not considered metals
c
Unlike all other elements, hydrogen and helium only have a maximum of 2 valence electrons
d
Unlike all other elements, hydrogen and helium have very limited properties
Question 6
The periodic table groups elements into which of the following three categories?

a
Solids, Liquids, Gases
b
Heavy, Light, Medium
c
Dense, Expanded, Compressed
d
Metals, Nonmetals, Metalloids
Question 7
A bond between sodium (Na) and chlorine (Cl) is what type of bond?

a
ionic
b
covalent
c
hydrogen
d
metallic
Question 8
Which of the following must happen in order for atoms to bond either ionically or covalently with one another?

a
The valence shells of all atoms must be filled after the bonding occurs
b
The chemical properties of the atoms must be satisfied
c
The ions must have different charges
d
The resulting compound must follow ionic naming conventions

1 answer

Here are the answers to the questions based on your provided options:

Question 5
Answer: c
Unlike all other elements, hydrogen and helium only have a maximum of 2 valence electrons.

  • Hydrogen has 1 electron and can hold 2 in total, while helium has 2 electrons, making them unique as they are both at the beginning of the periodic table and possess a full outer shell with a maximum of 2 electrons.

Question 6
Answer: d
Metals, Nonmetals, Metalloids.

  • The periodic table classifies elements mainly into these categories, based on their properties.

Question 7
Answer: a
ionic.

  • A bond between sodium (Na) and chlorine (Cl) is an ionic bond, where sodium donates an electron to chlorine, resulting in the formation of Na+ and Cl- ions.

Question 8
Answer: a
The valence shells of all atoms must be filled after the bonding occurs.

  • For atoms to bond (either ionically or covalently), they typically seek to achieve full valence shells, which leads to greater stability in molecules.
Similar Questions
  1. Question 8Two of most unique elements on the periodic table are hydrogen and helium. What makes them so unique and removed from
    1. answers icon 1 answer
  2. Question 5Two of most unique elements on the periodic table are hydrogen and helium. What makes them so unique and removed from
    1. answers icon 1 answer
    1. answers icon 1 answer
    1. answers icon 1 answer
more similar questions