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Periodic Table of Elements
Explore questions in the Periodic Table of Elements category that you can ask Spark.E!
- How many electrons does the second shell hold
- Elements in the same_________ do not have similar properties
- The table is organized into columns, Rose, and blocks, which are all based on their certain___________
- What did Mendeleev of organizing the elements by
- Means repeating according to a pattern
- A virtical column on the periodic table
- When there are large gaps between elements that means they are
- A diagram that shows the protons and neutrons in the nucleus and electrons in the energy level is called a
- How much of the elements on the periodic table are metals
- What scientist worked on a way to classify the elements
- What did scientists use to organize the elements
- Inert gases, will not react with anything
- Most reactive group of nonmetals, form compounds known as salts
- Groups 3-12, all metals, good conductors of electricity, high luster when freshly cut or polished.
- Shiny luster, high malleability, ductility, electrical and thermal conductivity, high tensile strength and Luster
- Group 2, Metals are harder, denser, stronger and have higher melting points, 2 electrons in the outer energy level, and not found in nature.
- Colorless, odorless gasses, filled energy level, inert
- A measure of the ability of an atom in a chemical compound to attract electrons
- dull, brittle, poor conductors of electricity and heat, many are gases at room temperature
- Developed a classification system that grouped elements into triads