Introduction to Chemistry Crossword Puzzle

QUESTIONS LIST:

• democritus : _ and leucippus, suggested that matter was not infinitely divisible into smaller particles.
• proton : atoms are made up of three particles: _ , neutrons and electrons
• elements : fundamental, indivisible particles called _ .
• elements : pure substance which cannot be broken down by chemical means, consisting of atoms which have identical numbers of protons in their atomic nuclei.
• homogeneous : type of mixture where it is a uniform mixture or a solution which looks like might be one substance.
• compound : chemistry primarily focuses on atoms, ions, and molecules which, in turn, make up elements and _ .
• elements : are defined as substances that are made of only one type of atom or only one type of molecule.
• science : a way of learning about the universe.
• heterogeneous : halo-halo is an example of what physical processes matter.
• valence shell : a valence electron is an outer shell electron that is associated with an atom
• antoine lavoisier : father of chemistry who started modern chemistry.
• scientific method : antoine lavoisier belief is different from alchemy. instead, he used _ and reasoning.
• ancient greeks : it was not until the era of the _ that we have any record of how people tried to explain the chemical changes they observed and used.
• conservation of mass : antoine lavoisier most important contribution was the _ .
• chemistry : deals with the properties of these substances and the reactions undergone by them to form new substances.