Chapter 3 Matter and Property Changes Packet Flashcards
1
Q
definition of matter
A
anything that has mass and takes up space
2
Q
(pure) substance
A
- a homogeneous (same) material consisting of one type of matter
- has a definite chemical composition(one recipe)
3
Q
All substances are…
A
pure
4
Q
Alchemists searched for…
A
the philosopher’s stone
5
Q
The philosopher’s stone could…
A
turn tin and lead (base metals) into gold, and make eternal life
6
Q
Alchemists spoke…
A
latin
7
Q
The 4 elements were
A
air, fire, water, earth
8
Q
Who came up with the new element naming rules?
A
J. J. Berzelius
9
Q
What was the first rule?
A
The first letter in the symbol is always capitalized
10
Q
What was the second rule?
A
If there is a second (or third) letter it is always lower case
11
Q
Elements
A
- substances that cannot be further decomposed by ordinary chemical means
- substances that only contain one type of atom
12
Q
How many natural elements
A
around 92
13
Q
What are the elements after 92?
A
synthetic
14
Q
Synthetic elements are…
A
radioactive
15
Q
Radioactive
A
not a single atom of that element is stable
every single atom has radioactive forms
