Question
Which factor(s) led scientists towards the
classification of elements? (i) Different methods of synthesis of elements (ii) Different source of elements (iii) Different properties of elements   ÂSolution
Moseley's Modern periodic law According to Moseley's Modern periodic law, Elements are Arranged in a Tabular form based on their Atomic Numbers. it states that the Chemical and Physical Properties of Elements is a Periodic Function of their Atomic Number. Newland Newland arranged the Elements in the Order of Increasing Atomic Masses and found that the Properties of Every 8th Element are Similar to that of the 1st Element, Just like musical notes. Mendeleev Mendeleev arranged the Elements in the Increasing Order of their Atomic Mass. Mendeleev's Periodic table is based on the Chemical Properties of the Elements. It contains 7 Periods(horizontal rows) and 8 Groups (vertical columns). Share on Whatsapp
Nitrous Oxide (N2O) is also known as –
Which of the following is not the Ore of Aluminium?
Which of the following elements is a noble gas?
Which vitamin exists in the Cobalt  ?
Which mineral is the ore Of aluminium ?
Sphalerite is an ore/mineral of -
Which substance is present in green leaves to help in the process of photosynthesis?
Which fossil fuel is formed under earth by the decomposition of vegetable matter lying under water by anaerobic bacteria in the absence of oxygen?
Formation of Sodium Chloride is an example of
Carbohydrates are organic compounds composed of which elements?Â