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Elements, Compounds, Mixtures, Atoms & Periodic Table Flashcards | StudBud
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Elements, Compounds, Mixtures, Atoms & Periodic Table
What are the two types of mixtures?
All mixtures are heterogeneous
Elements, Compounds, Mixtures, Atoms & Periodic Table
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1
All mixtures are heterogeneous
True
False
2
What are the two types of mixtures?
Elements and Compounds
Burt and Ernie
Heterogeneous and Homogeneous
Solutions and Colloids
3
Compounds and mixtures are the same
True
False
4
Which term best describes picture B?
Compound
Gas
Solid
Liquid
5
Which picture best represents a gas?
F
C
A
D
6
The three states of matter are...
a table, water, oxygen.
Water, air, and fire.
Solids, liquids, and gases.
Molecules, atoms, and particles.
7
How many protons, neutrons, and electrons are in potassium?
19,20,19
19,19,19
20,20,19
39,39,39
8
Elements are smaller than atoms
False
True
9
What does picture C represent?
Homogeneous Mixture
Element
Compound
Heterogeneous Mixture
10
Where are most metals on the periodic table
On the left side and in the middle
In the middle only
On the right side only
On the left side only
11
Who Created The Periodic Table?
Ernest Rutherford
Jean Perrin
Dmitiri Mendeleev
Robert Hooke
12
How many pictures show elements?
2
4
1
3
13
Neutrons...
All of the above
Have no charge
Are found in the nucleus
Serve as a buffer between protons
14
Number of Neutrons?
15.9994
16
8
7
15
Which picture best shows a solid?
E
B
A
D
16
Protons, neutrons and electrons are subatomic particles in an atom
False
True
17
What is a periodic table
a table explaining chemistry
a table of the chemical elements arranged in order of atomic number
all of the atoms that exist
noun Chemistry
18
Protons...
Are positively charged
Orbit the nucleus
Have no charge
Serve as a buffer
19
Electrons are positively charged whereas protons are negative and neutrons are neutral
True
False
20
Why does an atom have a positive and negative charge?
So a chemical reaction can happen
Because that is how it is
So that the element is stable as positive and negative charges balance
So that it can react
21
All elements are solids
False
True
22
Most elements on the periodic table are metals
False
True
23
All states of matter can be squashed
False
True
24
Electrons...
Are found inside the nucleus
Serve as a buffer
Are positively charged
Orbit around the nucleus
25
Some examples of elements are?
acid, oil and steel
water, oil and gas
oxygen, hydrogen and helium
oxygen, cyanide and water
