Answer:
Rubidium
Rubidium is the first element placed in period 5.
Answer:
Fill in the blanks with the correct term.
a. a liquid that dissolves another substance.
b. a chemical that is dissolved.
c. a value used to describe the amount of one substance dissolved in another.
d. a liquid consisting of one substance dissolved in another.
Explanation:
a. A liquid that dissolves another substance is called the solvent.
b. A chemical that is dissolved solute.
c. A value used to describe the amount of one substance dissolved in another is called concentration.
d. A liquid consisting of one substance dissolved in another is called a solution.
Answer:
Gravitational potential energy
Because
1. It's due to position so it's potential energy
2. Potential energy due to height is gravitational potential energy
All elements can be classified as metals, metalloids, or nonmetals
