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KS3 SCIENCE
KS3 ATOMS AND ATOMIC STRUCTURE
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Created by
Mrs E Sproule
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Cards (44)
What is the basic unit of matter?
Atom
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How many different atoms are there approximately?
Around
one hundred
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What are the three subatomic particles in an atom?
Protons
Neutrons
Electrons
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Where are electrons located in an atom?
Outside
of the atom
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Where are protons and neutrons found in an atom?
In the
nucleus
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What are the charges of protons, electrons, and neutrons?
Proton:
+1
Electron:
-1
Neutron:
0
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What is the mass of a proton?
One
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How is the mass of an electron described?
Very small
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What is the mass of a neutron?
One
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Where is the mass of the atom concentrated?
In the
nucleus
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Why is the overall charge of an atom neutral?
Equal number of
protons
and
electrons
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How many protons does a carbon atom have?
Six
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Who is the speaker in the material?
Professor Tidlybit
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What are atoms described as in the material?
Building blocks of
everything
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How many electrons does a carbon atom have?
Six
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What do atoms make up?
Everything including
rocks
and plants
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How many kinds of atoms are found in nature?
94 kinds of atoms
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How many additional kinds of atoms have scientists created?
24
more kinds of atoms
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What is the total number of kinds of atoms known?
118
kinds of atoms
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What is each kind of atom called?
An
element
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What chart do scientists use to organize elements?
The
Periodic Table
of Elements
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How do you find the number of neutrons in an atom?
Subtract
protons
from the larger number
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What percentage of the human body is made up of six elements?
Almost
99%
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What is the percentage of oxygen in the human body?
65%
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What is the percentage of carbon in the human body?
18%
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What is the number of neutrons in carbon?
Six
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What is the percentage of hydrogen in the human body?
10%
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What is the percentage of nitrogen in the human body?
3%
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What is the percentage of calcium in the human body?
1.5%
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What is the percentage of phosphorus in the human body?
1%
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How often are the atoms in your body replaced?
Almost every
year
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How do we bring atoms into our bodies?
By
drinking
, eating, and inhaling
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How do we lose atoms from our bodies?
By
sweating
,
exhaling
, or going to the bathroom
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What does the periodic table tell us about an atom?
Number of
protons
Number of
electrons
Number of neutrons
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What does it mean that you are an ever-changing body of atoms?
Your atoms come from various places on
Earth
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What should you think about regarding your atoms?
What
makes
you
really
you?
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What are atoms described as in relation to size?
Really
small
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What does the larger number in the periodic table represent?
Atomic mass
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What does the comparison of atoms in a grain of sand illustrate?
Atoms are extremely
numerous
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What does the smaller number in the periodic table represent?
Number of
protons
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