In the table below you will find three descriptions of scientists engaging in activities that are part of the scientific method. What are the missing words? description Hans decides to test an idea that the atom is made of a soft positive substance with hard specks of negative substance (the electrons) embedded in it. He sets up an in which heavy positive particles will be fired into some gold atoms. Hans will monitor how much these positive particles are deflected passing through the gold atoms. J. J. suggests the that an atom subjected to a high voltage becomes charged because it's made of some positive material with small bits of negative material embedded in it, like raisins in a pudding. The high voltage rips the negative bits out, leaving the positive material behind, and making the once neutral atom charged. After studying how many different elements absorb X-rays, Harry finds that the atomic number of the element is always proportional to the square root of the wavelength of X-rays absorbed by the element, an example of the kind of that in the late 19th and early 20th centuries hinted at the structure of the atom. missing word? experiment 0 0 X S
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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