2nd PERIODIC TEST in SCIENCE 9
Name: ____________________________________________ Score: _____________
Grade and Section: ________________________________ Date: ______________
Directions: Read each item carefully. Write the letter that corresponds to the correct answer on
the space provided before each number.
____1. On the basis of Rutherford’s model of an atom, which subatomic particle/s is/are present in
the nucleus?
A. neutron and electron C. proton and neutron
B. proton and electron D. proton only
____2. Who proposed that the electron (which is thought of as a particle) could also be thought of
as a wave?
A. Erwin Schrodinger C. Neils Bohr
B. Louie de Broglie D. Werner Karl Heisenberg
____3. The fixed energies that the electrons have are called ____________.
A. atomic orbitals C. energy levels
B. electronic configuration D. orbits
____4. The region of space around the nucleus where the electron is most likely to be found is
called ____________.
A. atomic orbitals C. energy levels
B. electronic configuration D. orbits
____5. What are the orbitals present in the third principal energy level?
A. s orbital C. s, p, d orbitals
B. s, p orbitals D. s, p, d, f orbitals
____6. How many orbitals are there in the fourth energy level?
A. 3 B. 4 C. 15 D. 16
____7. Which of the following sublevels is correctly designated?
A. 1p5B. 2d6C. 3d11 D. 4f14
____8. Which electron transition results in the emission of energy?
A. 1s to 2s B. 2p to 2s C. 2s to 2p D. 3p to 4p
____9. What is the correct electron configuration for phosphorus, Z=15?
A. 1s2 2s2 2p6 3s1 3p2C. 1s2 2s2 2p5 3s1 3p3
B. 1s2 2s2 2p6 3s2 3p3D. 1s2 2s2 2p6 3s3
____10. What do call the measure of the tendency of an atom to attract electrons?
A. electronegativity C. ionization energy
B. electron affinity D. metallic character
____11. The energy needed to remove one or more electrons from a neutral atom is called
____________.
