I think everyone should write book reviews just after they finish it whether online or in a notebook. Not later as we might forget most of the part of it. There are several reasons for that: First, you get a writing habit that is going to improve with every book. Second, summarizing the whole story …
Month: May 2023
1. The property of elements showing similar properties at a regular interval is called ………………………………. 2. Periodic table shows elements in order of their ……………………… number. 3. How much percentage of elements in a Periodic table are non-metals? (a) More than 80% (b) Less than 20% (c) 50% (d) 60% 4. Element that form + …
(a) The protons (b) The nucleus (c) The electrons 2. What is the charge on an electron? (a) One positive (b) No charge (c) One negative 3. Which of the three sub-atomic particles is the lightest? (a) The proton (b) The neutron (c) The electron 4. If atoms contain charged particles, why do they not …