The answer would be Rocks, metals, hydrogen compounds, hydrogen and helium, all in gaseous form.
Answer:
compound
Explanation:
A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.
Simple,
take a look at your periodic table, if you have it labeled look at the Halogen
Group, it includes: Flourine, Chlorine, Bromine, Iodine, and Astatine.
Now, a period on the periodic table is read from left to right, and goes
down the rows of the periodic table.
Go to Period 5, go all the way to the Halogens, what is there?
Iodine.
Thus, your answer.
Answer:
The Physical Properties of Chlorine are as follows:
Color: Greenish-yellow.
Phase: Gas.
Odor: Disagreeable, suffocating smell.
Density: About two and one-half times as dense as air.
Solubility: Is soluble in water. ...
Boiling Point: The boiling point of chlorine is –34.05°C.
Melting Point: The melting point is –101°C.
Explanation:
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