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Created by ZARADOXX ALI
almost 9 years ago
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Question | Answer |
What are elements? | Elements are substances that are made up of just one type of atom. |
What is an atom? | Every substance in the universe is made up of building blocks known as atoms. |
What are two types of elements? | Metallic and Non-Metallic |
Describe some properties of metallic elements? | shiny, solid at room temperature except mercury, good conductors of heat and electricity and they can be bent and hammered into sheets. |
Describe some properties of non-metallic elements? | they are dull (not shiny), do not conduct heat or electricity and they break or crumble when u break them. |
How many elements are there? | 118 |
How many of them are natural? | 91 |
What is a periodic table? | Scientist display all the known elements and symbols in a periodic table. |
What a single atom is referred to as? | monatomic |
What is a cluster of atoms called? | molecules |
How many monatomic elements are there? | 6 |
Name all of the monatomic elements | neon, argon, krypton, xenon, helium and radon. |
How atoms are com-packed in metallic lattices? | The atoms are only weakly joined to each other, as a result they can be bent and drawn into wires |
How atoms are com-packed in non-metallic lattices? | The atoms are strongly bonded to each other, this makes them hard and brittle. |
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