What are the four charectaristics of science?
Answers
Answer:
branches of science .physics, chemistry,biology ka Jo characteristics ha Bo he ha science ke characteristics 1.electrochemical cell,battery safety match stick,man made materials soaps, detergent, fertilizers,glass, cement medicines,polymers, plastics,fibres, bio :--- hybrid seeds, multi cropping, penicillin,Nystatin,bacitracin,hamycin polymixin,gentamicin. physics :--- -calorimeter cardiogram,chronometer,dynamo,speedometer,lactometer, voltmeter,radiometer. acha ma periodic table be write karta hu hydrogen, helium, lithium, beryllium, baron, carbon, nitrogen, oxygen,flourine, neon,sodium, magnesium, aluminium, silicon, phosphorus, sulphur, chlorine,argon, potassium, calcium, scandium,titanium,vanadium, chromium, manganese, iron, Cobalt, nickel, copper,zinc, gallium, germanium, arsenic selenium,bromine,krypton,bhai next vaad ma okay Metals are generally solids ( hg is a liquid mercury) and possess characteristics such as bright lusture hardness and ability to conduct heat and electricity. they are malleable and ductile. non metals are usually non - lustrous, brittle and poor conductors of electricity. Metalloids :-- possess characteristics common to metals as well as non - metals ( e.g., Si,Sb,As). THE LIQUID NON METAL is bromine. THE LIQUID METALS ARE Cs, Fr, Hg and Ga. GASEOUS ELEMENTS are h2 , n2, o2, f2, cl2, He, Ne, Ar, Kr, Xe and Rn. lightest element is HYDROGEN. THE LIGHTEST METAL IS LITHIUM. HEAVIEST ELEMENT IS IRRIDIUM .