The Language of Chemistry I The Language of Chemistry I Symbols, Valency, Formula,, Radicals, Chemical Equations 1 / 10 Which was the first subatomic particle discovered? The Proton The Electron The Neutron Alpha particle 2 / 10 How many protons, neutrons, and electrons are present in the nucleus of a carbon atom? 6,5 and 6 respectively 5,6 and 5 respectively 6 each 5 each 3 / 10 What terms is applied for the variants of a particular element with different atomic weights, neutron number and physical properties? Isobars Isotopes Isomers Isotones 4 / 10 How many electrons will be equal to the mass of a neutron? 1 3 1839 5438 5 / 10 How many chemical elements are presently known? 114 112 118 116 6 / 10 What is the name of the lightest stable subatomic particle known that carries a negative charge which is considered as the basic charge of electricity? Neutrons Protons Neutrinos Electrons 7 / 10 Which atom is heaviest to occur naturally? Technetium Promethium Uranium Thorium 8 / 10 Which normal atom has only one electron? Carbon Helium Lithium Hydrogen 9 / 10 The formula used to determine the maximum number of electrons that can be accommodated in an orbit? 2n 2n2 2n4 2n3 10 / 10 In a neutral atom, the number of electrons is identical to the number of positive charges on the nucleus. Any atom, however, may have more or fewer electrons than positive charges and thus be negatively or positively charged as a whole. What are these charged atoms called Ions Isotope Compound Positron Your score isThe average score is 0% 0% Restart quiz
