Periodic Table Vocabulary

the group 18

one or more positively charged particles in the nucleus of an atom

tiny region in which positive charge must be clustered

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anything that has mass and takes up space

the negatively charged particles

a row of elements across the periodic table

those electrons that have the highest energy level and are held most loosely

the smallest particle of an element

located at the far left side of the periodic table, group 1

a particle that is electrically neutral

the simplest pure substances, and they cannot be broken down into any other substances

usually consisted of one or two letters

the elements in group 17

a well-tested idea that explains and connects a wide range of observations

Question is located in the picture box

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a pure substance made of 2 or more elements that are combined chemically in a specific ratio

the number of protons in the nucleus of an atom

includes the symbol for the element surrounded by dots

elements in the same column

the specific amount of energy an element has