QUESTION 4 (MARKS 30) a. Draw a Bohr-Rutherford diagram of Carbon (C) (See the periodic table on page 7) (MARKS 10) Write: b. The number of electrons (MARKS 1) C. The number of protons (MARKS 1) d. The number of neutrons (MARKS 1) e. The atomic mass (MARKS 1) f. The atomic number (MARKS 1) g. What is hardenability of steels and how it is measured (name the test)? (MARKS 5) h. Describe the test method for measuring the hardenability of steel metals. (MARKS 10) PERIODIC TABLE OF ELEMENTS 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 WE Be Awal metals metals Akalne earth 20 metals Transition metals Post-transition Metalloids nonmetals Other Noble gases Coco