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Flashcards in Unit One Deck (16)
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1

What is the mass number

Number of protons plus the number of neutrons in the nucleus

2

What is the atomic number

The number of protons in the nucleus

3

Give the definition of an isotope

Have the same atomic number but with different mass numbers

4

What effects the rate of reaction

Partial size
Temperature
Concentration
Catalysts

5

What’s the equation for the average rate

Change in quantity
—————————
Change in time

6

What are the diatomic elements

Hydrogen Has
Nigtrogen Neville
Oxygen Over
Fluorine Fed
Chlorine Claire’s
Bromine Big
Iodine Iguana

7

Why do atoms combine ?

Because they all want to be like noble gasses , with full electron wheels , stable

8

How does a covalent bond form

When two positive nuclei are held together by their common attraction for a shared pair of electrons

9

When does a triple bond accur

When 2 atoms share 3 pairs of electrons eg. Nitrogen

10

What is discrete covalent molecular bonding

Discrete covalent molecular compound tend to be small compounds where neither elemeang is a metal

11

What are the prefixes and number of atoms

Prefix Number
————————-
Mono 1
Di 2
Tri 3
Tetra 4

12

What is ionic bonding

Positive ions and negligible ions joining together

13

How do ionic bonds form

They join together. The ionic bond is the electrostatic attraction between oppositely charged ions

14

What are the different networks and lattices

Covalent network
Covalent molecules
Ionic compound
Metallic bonding

15

What type of bonding conducts as a solid

Metallic

16

What type of bonding conducts as a liquid/solution

Metallic and ionic