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Year 9 Chemistry - The Atom Flashcards | StudBud
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Year 9 Chemistry - The Atom
Year 9 Chemistry - The Atom
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Quiz for year 9 Chemistry - (ACSSU178)
Flashcards
19 cards
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Questions
19
Answers
1
How many electrons are there in the outer shell of Sodium (Na)
2
8
1
7
2
If there is 1000 helium atoms in a container, how many will there be after 3 half lives?
250
0
500
125
3
The Following is an example of who's atomic theory?
Albert Einstein
Democrites
Niles Bohr
JJ Thompson
4
The Periodic table can tell us many things, including:
The Ions that the element can form
The properties of an element
How reactive an element is
What an element can bond with
5
The law of Conservation of Mass describes that:
In a chemical reaction, no atom is lost, but bonds change
Matter can be created and destroyed
Elements are created through chemical reactions
We should conserve our Catholic values
6
How do isotopes vary from the most common form of an atom?
Atomic Number
Mass
Proton Number
Charge
7
What is the name given to this model?
Plum Pudding
Dalton Model
Cheese Model
Bohr Model
8
In chemistry, the term Valence refers to:
The number of electrons
The strength of a bond
The bond made between water molecules
The electrons in an elements outer shell
9
Atomic Number represents the number of:
Electrons
Neutrons
Protons
Neutrons + Protons
10
What happenes in the formation of a Beta Particle?
Explosions that will end the world!!!
A Neutron becomes a proton and an electron
A gamma ray is always produced
The Atomic Mass of an Element changes
11
Which of the following best Illustrates the arrangement of electrons
2,8,8 or 18, 32
2,8,8,18
1,2,3,4,5,6,7,8
2,2,8,8,18,18
12
What is an Alpha (α) Particle?
Two Protons and Two Neutrons
A Helium Atom
A Single Atom
Any Atom Starting with an 'A'
13
When using a Bunsen burner:
You light it with the holes covered
You always keep it on the safe flame
You should light it with the holes open
The hottest part it the tip of the flame
14
Which of the following best describes atomic mass?
The number of neutrons and Protons in the most common atom
Weight of the atom
World Wide average mass of all isotopes of an element
The number of Electrons, Protons and Neutrons
15
What is an ion?
Something we find in old Tupperware
A powerful Warrior
Tofu
A charged element, having either lost or gained an electron
16
What have we learnt about this year?
The formation of atomic theory, its uses and radiation
Science...
History of science
Nothing...
17
How does Radiation from the sun cause Cancer?
Mutation of the Cell wall of skin cells
Mutates the DNA in our skin cells
Destroys the matter inside our cells
18
True or False: Magnesium loses two electrons to form a negatively charged ion
True
False
19
True or False: Radiation is always bad
False
True
I haven't been taught this??
