Lesson 9 - Chemistry Through Time Flashcards Preview

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Flashcards in Lesson 9 - Chemistry Through Time Deck (17)
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1

alchemy

experimenting with elements in order to try to change them into gold

2

what is chemistry

Chemistry is the science of matter and how it interacts with other forms of matter. Chemistry is an old science. Ancient cultures knew the value of gold, silver, and copper, as well as uses for iron and clay. They knew how to shape these types of matter into different tools. As a review, let’s take a look at what the science of chemistry is all about.

3

what can chemistry do

Chemistry can create new types of materials. Paint, clothing, bug spray, medicines, makeup, paper, and soap are all products of chemistry and its study. Chemistry has helped our society to improve its food, health, and safety.

4

Robert Boyle

dismissed the idea of alchemy and helped to steer chemistry down a more useful path (also made discoveries about matter, elements, and compounds)

5

Dmitri Mendeleev

organized the known elements into the periodic table

6

S.P.L Sorensen

designed the pH scale to measure acidity in fluids

7

Alessandro Volta

built one of the first batteries, using copper, zinc, and brine-soaked cardboard

8

John Dalton

proved that all things are made of atoms

9

J.J thomson

discovered that atoms are made of subatomic particles

10

Ernest Rutherford

proved that an atom has a nucleus, and that the majority of each atom is just empty space

11

Niels Bohr

built a model of an atom, showing that electrons move in a circular motion around the nucleus

12

james Chadwick

discovered with Rutherford that there are neutral particles inside an atom; named these particles “neutrons”

13

Alfred Nobel

famously invented dynamite; set up an estate for scientific advances now known as the Nobel Prizes

14

Erwin Schrodinger

described how electrons move in an atom, which led to the creation of the electron cloud model

15

What kind of work does chemistry involve?

It involves studying matter in order to learn what it is made of and what type of changes it can go through.

16

Alchemists tried to create _____________.

gold

17

How were the Nobel Prizes established?

Alfred Nobel set up an estate for scientific advancements. His money is awarded as prizes to those who do great work in physics, chemistry, and other fields.