MAPL I. MULTIPLE CHOICE Write the letter of the correct answer before each corresponding number. AT 1. Which of the following principal energy levels has the highest energy? A. n=1 B. nr 2 C. n=3 D. n= 4 C 2. If the first and second energy levels of an atom are full, what would be the total number of electrons in the atom? A. 10 B. 16 C.8 D. 18 3. Who proposed the idea that particles could as well behave like waves? A. Louis De Broglie B. Erwin Schrodinger C. Niels Bohr D. Werner Heisenberg 4. Which of the following scientists devised an equation about the wave-like motion of electrons around the nucleus of the atom? A. Louis De Broglie B. Erwin Schrodinger C. Niels Bohr D. Werner Heisenberg 5. What do we call the letters s, p, d, and f in writing the electron configuration of the elements? A. Shells B. Sublevels C. Electron Number D. Orbitals 6. What model of the atom describes an atom as having a nucleus surrounded by electrons found in regions of high probability? A. Rutherford's Atomic Model C. Bohr's Atomic Model B. Quantum Mechanical Model D. Thomson's Atomic Model -7. Who proposed the assumption that one cannot exactly determine the location and movement of electrons? A. Louis De Broglie B. Erwin Schrodinger C. Niels Bohr D. Werner Heisenberg 8. How many orbitals are there in the s sublevel? A. 1 B. 3 C.5 D.7 9. What is the maximum number of electrons that the f sublevel can hold? A. 1 B. 14 C.6 D. 10 10. How many orbitals are there in the p sublevel? A.1 B.3 C. 5 D.7 11. Why do atoms react with one another to form chemical bonds? A. To attain stability B. To form molecules C. To form compounds D. To produce ions 12. What is the symbol we use to represent the valence electron of the element? A. Asterisk B. LEDS C. Element D. Number 13. How do metal and non-metal form ionic bond? A. They shared electrons with one another. B. There is repulsion between metal and non-metal. C. The metal atom transfers its electron to the nonmetal atom. D. The metal gains electrons while non-metal loses electrons. 14. What kind of force is present in the ionic bond? A. Neutral force B. Attraction C. Repulsion D. Retentive force 15. What kind of particle is produced after covalent bonding? A. Atom B. Molecule C. electron D. ion 16. How many valence electrons are there in Argon? A.4 B. 6 c. 7 D.8 17. Which of the following shows that an atom is stable? A. Having 2 valence electrons C. Having 4 valence electrons B. Having 6 valence electrons D. Having 8 valence electrons 18. When does covalent bonding take place? A. When the attraction between atoms is weak. C. When atoms share electrons with one another B. When atoms collide with one another. D. When atoms attain stability 19. Element X belongs to Group 1. Which of the following best describes the element? A. High ionization B. High electronegativity C. A non-metallic element. D. Low electronegativity 20. What kind of particle is produced after ionic bonding? A. Atom B. Molecule C. electron D. ions​