Definition: this is information from an experiment that can be assigned a number or a quantity and can often be used to construct a graph.

answer correctly

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Ok, so i have 2 questions. try to answer them both: (the topic is fire) 1) how can you represent the chemical reaction of fire? 2) what kind of bond is formed in this chemical reaction

Mr. rose asked his student to draw a quadrilateral with four unequal sides. an example of this kind of quadrilateral