MCQ 3: Chemical elements are represented by Greek or Lat A. alphabets B. symbols C. gods D. illusions

NAME________________________________________________DATE: 112020 Devise a system of chemical symbols that is easy to use by answering the questions below. Look up the symbols for the following elements: hydrogen . . . . . . . . . . . . . . . . . _______________ oxygen . . . . . . . . . . . . . . . . . . . _______________ nitrogen . . . . . . . . . . . . . . . . . . _______________ carbon . . . . . . . . . . . . . . . . . . . _______________ sulfur . . . . . . . . . . . . . . . . . . . . _______________ fluorine . . . . . . . . . . . . . . . . . . _______________ iodine . . . . . . . . . . . . . . . . . . . _______________ phosphorus ............... _______________ What rule was used to come up with these symbols?   Look up the symbols for the following elements: calcium . . . . . . . . . . . . . . . . . . _______________ cadmium . . . . . . . . . . . . . . . . . _______________ cesium ................... _______________ cerium . . . . . . . . . . . . . . . . . . . _______________…

Atomic Theory & Scientists 1. Write the letter of each sentence that is true about Dalton's atomic theory. a. All elements are composed of tiny, indivisible particles called atoms. An element is composed of several types of atoms. b. c. Atoms of different elements can physically mix together, or can chemically combine in simple, whole-number ratios to form compounds. d. Chemical reactions occur when atoms are separated, joined or rearranged; however, atoms of one element are never changed into atoms of another element by a chemical reaction.

For number 2, how do we know N2 and H2 are games? Is the 2 subscription after them how we express all elements as games?