What subatomic particles make up the nucleus of an atom (select ALL that are in the nucleus) 1. Atoms
2. Electrons
3. Protons
4. Neutrons

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.

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule

Which of the following words describe the reality that the universe looks the same from various perspective