Science 8, Re-Test, Chapter 1 Flashcards Preview

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Flashcards in Science 8, Re-Test, Chapter 1 Deck (14):
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What is a valence electron?

-an electron that is found in the outermost energy level of an atom and that determines the atom's chemical properties

1

What is Atomic Number?

-the amount of protons in an atoms nucleus

2

What is an Ionic Bond?

-a bond that forms when electrons are transferred from one atom to another, which results in a positive ion and a negative ion

3

What is an Ion?

-a chared particle

4

What is a Covalent Bond?

-a bond formed when atoms share one or more pairs of elctron

5

What is a Valence Electron?

-an electron that is on the outermost energy level of an atom

6

What is a Crystal Lattice?

-the regular pattern in which a a crystal is arranged

7

What is an Electron-Dot Diagram/Lewis-Dot Diagram?

-a diagram displaying the amount of valence electrons around the chemical symbol

8

The more easily an atom gains electrons, the more _________ it loses

-energy

9

Why can metal bend and not break?

-the metallic bonds can bond and not break because the atoms are rapidly moving around

10

Why doesn't Neon or other noble gases bond easily?

-this is because it is a stable gas with a full or almost filll outer energy level

11

What is the smallest possible thing a substance can be separated into?

-a molecule

12

What is Ductility?

-the property of metal that allows it to be formed into wire

13

What is Malleability?

-the property of metal that allows it to be bent into different shapes without it being broken