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Atoms and the Periodic Table
Atoms and the Periodic Table
20 terms
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#5thgradephysicalscience #periodictableoftheelements #atoms
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1
Why haven't scientists been able to directly study atoms?
They don't know where to find them.
If someone looks directly at an atom, it will explode.
They are too tiny.
They don't think it's important to study them.
2
How is the current Periodic Table organized?
By atomic number
By the chemical symbol
By atomic weight
Alphabetically
3
What is the electrical charge of a NEUTRON?
negative
neutral
positive
4
Where in an atom are protons found?
Electrons are not found in atoms.
In the center, or nucleus.
Orbiting around the nucleus.
5
What is the natural electrical charge of an ATOM?
neutral
positive
negative
6
How can you find out the number of NEUTRONS in an atom?
It's the total number of particles in an atom's nucleus.
Subtract the atomic number from the atomic weight.
Add protons and neutrons.
Add protons and electrons.
7
What are the three basic parts of an atom called?
electron, proton, neutron
atoms, matter, energy
carbon, hydrogen, oxygen
electron, hydrogen, quark
8
How does each elemental atom get its ATOMIC WEIGHT?
It's the total number of particles in an atom's nucleus.
Add protons and electrons.
Add protons and neutrons.
Subtract the protons and neutrons.
9
What is an element?
A fuel-efficient car.
Part of science that rhymes with "schmelement".
The building block of all matter.
A pure substance.
10
True or False: Atoms always have the same number of protons and neutrons in the nucleus.
True
False
11
What is the electrical charge of a PROTON?
negative
positive
neutral
12
True/False: In their natural, neutral state, atoms have equal amounts of protons & electrons.
False
True
13
What is a compound?
Elements that are combined and that can be separated.
Two or more words joined to make one word, like "campfire".
2 or more atoms of the same element that are stuck together.
2 or more different elements joined to make a new substance.
14
In their natural, neutral states, how does each elemental atom get its ATOMIC NUMBER?
It's the total number of neutrons.
It's the total number of electrons.
It's the total number of protons in the nucleus.
Subtract the atomic weight from the number of electrons.
15
In the compound H
2
O, how many hydrogen atoms are present?
Three
One
None
Two
16
True or False: Most of the weight of an atom is found inside the nucleus.
True
False
17
What is the Periodic Table?
A table that organizes elements in alphabetical order
A table that shows elements in random order.
A table that organizes elements by their properties
A puzzle that, if put together right, creates a new planet
18
What is the electrical charge of an ELECTRON?
negative
neutral
positive
19
What is the smallest part of all matter called?
neutron
protron
atom
electron
20
The chemical compound for baking soda is NaHCO
3
. How many atoms of carbon are there?
Three
One
Two
None
