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46 Cards in this Set

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Metal

Shiny, Malleable, Ductile, good conductors, solid at room temp (except mercury), usually denser than non-metals, active-react w/acid; very active- react w/water

Ex. Iron, Copper, Nickel, Lead

Non-metals

Dull, brittle, lower melt/boil points than metals, gasses at room temp, poor conductors

Fluorine, Phosphorus, Chlorine, Iodine

Metalloids

Don't fit in either group (have properties of both), semi conductors

Ex. Silicon, Arsenic, Germanium, Antimony

Element 1

Hydrogen

H

Element 2

Helium

He

Element 3

Lithium

Li

Element 4

Beryllium

Be

Element 5

Boron

B

Element 6

Carbon

C

Element 7

Nitrogen

N

Element 8

Oxygen

O

Element 9

Fluorine

F

Element 10

Neon

Ne

Element 11

Sodium

Na

Element 12

Magnesium

Mg

Element 13

Aluminum

Al

Element 14

Silicon

Si

Element 15

Phosphorus

P

Element 16

Sulfur

S

Element 17

Chlorine

Cl

Element 18

Argon

Ar

Element 19

Potassium

K

Element 20

Calcium

Ca

Four Main Ideas

•Ancient Chemistry gave practical info on matter but not good undersanding


•The first modern chemists found and named new elements


•Elements = metals, non-metals, and metalloids


•the PT orders the elements in rows based on mass and groups/columns of similar properties

Ancient Chemistry

Find & purify as many new elements as possible

Ancient Chemistry

Find & purify as many new elements as possible

Alchemists

Reflection on religious beliefs & attempt to blend natural and spiritual worlds

Beginning of Modern Chemistry

Experimentation & observation become more important. Realized existence of compounds & elements

Berzelius

Symbolic system to describe elements:


1) labeled by first letter of English or Latin name


2) if first letter used already, use first & second


3) first letter capital, second letter lowercase

Mendeleev

Ordered elements by mass, properties repeated, put in groups w/ both, left gaps when heaviest element didn't match w/properties

Mendeleev

Ordered elements by mass, properties repeated, put in groups w/ both, left gaps when heaviest element didn't match w/properties

Dalton

Discovered masses of elements in chemical reactions had certain proportions, figured out masses from that

After chemical reaction, mass of oxygen is 8 times hydrogen, meaning oxygen is 16 times mass of hydrogen (one part oxygen, two parts hydrogen)

Predicting

Gaps specific w/ mass and properties, scientists could try to find right element or right mass if mass & properties not perfect

General form of periodic table

1940

Elements named after people

Einsteinium, Bohrium, Rutherfordium

Elements Named after places

Francium, Gallium, Germanium, Scandium, Polinium

Elements With First letter

Boron, Carbon, Oxygen, Nitrogen, Hydrogen

Elements With First letter

Boron, Carbon, Oxygen, Nitrogen, Hydrogen

Elements with first and second letter

Helium, beryllium, Lithium, Neon, Calcium

Elements With First letter

Boron, Carbon, Oxygen, Nitrogen, Hydrogen

Elements with first and second letter

Helium, beryllium, Lithium, Neon, Calcium

Names entirely different from symbol

Gold, Silver, Iron, Tugsten, Sodium

What was new chemistry called?

The reformed chemistry movement

What was new chemistry called?

The reformed chemistry movement

How many elements were found in the 1700s and 1800s?

1700s- 20


1800s- 51

What did the first modern chemists do that was different from Alchemists

Test theories and observations/experiment, test substances to see if they could be broken down and found in what proportions