'Silvery metals' diaporamas de présentation

Bell Work

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Introduction

Introduction. Metals High luster when cleaned and high conductivity Non-metals Low luster when cleaned and low conductivity Metalloids Combo of metals and non-metals. Families Periods. Columns of elements are called groups or families.

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Groups

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Periodic Table

Periodic Table. Dmitri Mendeleev. Mendeleev invented the periodic table. He arranged the elements based on their physical and chemical properties. Atomic Mass. Atomic mass is the average mass of an atom of an element. Atomic Number. Atomic number is the number of protons in an atom.

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