NEED HELP PLS
1. Who proposed the idea that matter has no ultimate particle?
a. Anaximenes
b. Aristotle
c. Heraclitus
d. Thales

2. Who proposed the idea on the existence of an atom being the ultimate particle of matter?

a. Aristotle
b. Democritus
c. Heraclitus
d. Thales
3. Which of the following sets of materials comprise the early beliefs on the ultimate composition of matter?

a. Gas, soil, fire, water
b. Air, earth, fire, water
c. earth, fire, water, wind
d. earth, wind, space, water

4. What kind of visuals can illustrate appropriately the particulate nature of matter?

a. actual objects
b. ball-and-stick model
c. particulate drawings
d. all of the above

5. What state of matter exists only at a temperature of near absolute zero?

a. Bose-Einstein condensate
b. gas
c. plasma
d. all of the above

6. Who originated the idea that an atom is neutral, tiny, indestructible, and the smallest particle of matter?

a. Dalton
b. Rutherford
c. Socrates
d. Thomson

7. Which of the following apparatus was first used to establish the existence of the electrons?

a. Canal ray tube
b. cathode ray tube
c. gold foil apparatus
d. mass spectrometer

8. What is the SI unit of an electric charge?

a. ampere
b. coulomb
c. ohm
d. volt
9. Who proposed the raisin pudding model of an atom?

a. Dalton
b. Millikan
c. Rutherford
d. Thomson
10. What experiment validated the existence of the nucleus of an atom?
a. Oil drop
b. gold foil
c. cathode ray
d. nuclear reaction
11. What is described by the dual nature of matter?

a. A particle has its own antiparticle.
b. A particle is both an atom and a wave.
c. A particle is both a particle and a wave.
d. A particle is both an electron and a wave.
12. Which of the following can be derived from the Schrodinger’s equation?

a. Size of the atomic nucleus
b. Directions of electron spin
c. The four quantum numbers
d. All of these
13. What quantum number designates the most probable distance of an electron from the nucleus?

a. Spin quantum number
b. Principal quantum number
c. Magnetic quantum number
d. Azimuthal quantum number
14. Which of the following atomic models accounts for a detailed description of electron distribution in an atom?

a. Bohr’s atomic model
b. Thomson’s atomic model
c. orbital model of the atom
d. Rutherford’s atomic model
15. How many orientation in space does a p-orbital have?

a. one
b. two
c. three
d. four