Which of the statements about atoms are true? 1. All matter is made of atoms.
2. Air is between atoms in substances
3. There is nothing between atoms in a gas.
4. Living organisms are made of atoms.

Select all that apply.

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.