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🌹 *🌹ईश्वर ऑक्सीजन की तरह है* *हम उनको देख भी नहीं सकते* *और उनके बिना रह भी नहीं सकते l*   Subject Names Questions Marks Part A:  General Knowledge / Current Affairs 50 50 Part B:  Reasoning 25 25 Part C:  Numerical Ability 15 15 Part D:  Computer Fundamentals, MS Excel, MS word, Communication, Internet, WWW & Web Browsers, etc. 10 10 Total 100 Questions 100 Marks विस्तृत ज्ञान के लिए पढ़ते रहिए मासिक पत्रिका : 👇 👇 👇 धर्म की जय हो अधर्मी का नाश हो🚩 प्राणियों में सद्भावना हो विश्व का कल्याण हो वसुधैव कुटुंबकम हर हर महादेव जय महाकाल🚩 अयोध्या धाम तीर्थ दर्शन का *पुण्य लाभ मात्र शेयर करने से प्राप्त होता ही है* 📸 📷

The table below consists of 118 elements of the periodic table, sorted by atomic number, atomic weight, symbols, density, discovered year and the group.

ATOMIC STRUCTURE AND CHEMICAL Engineering  Protons Protons are positively charged subatomic particles. The charge of a proton is 1e, which corresponds to approximately 1.602 × 10 -19 The mass of a proton is approximately 1.672 × 10 -24 Protons are over 1800 times heavier than electrons. The total number of protons in the atoms of an element is always equal to the atomic number of the element. Neutrons The mass of a neutron is almost the same as that of a proton i.e. 1.674×10 -24 Neutrons are electrically neutral particles and carry no charge. Different isotopes of an element have the same number of protons but vary in the number of neutrons present in their respective nuclei. Electrons The charge of an electron is -1e, which approximates to -1.602 × 10 -19 The mass of an electron is approximately 9.1 × 10 -31 . Due to the relatively negligible mass of electrons, they are ignored when calculating the mass of an atom.  THE END 🔚  ...