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Periodic Table Flashcards | StudBud

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Periodic Table

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Atomic theory, atom & periodic table

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Questions 9

Answers

1
The pictured elements belong to which group on the periodic table?
halogens
transition metals
noble gases
alkali metals
2
When trying to find the number of neutrons,
add the protons and electrons
look at the mass number
subtract the protons from the mass
look at the atomic number
3
When trying to find the number of protons,
look at the mass number
subtract the atomic number from the mass number
subtract the number of electrons from the neutrons
look at the atomic number
4
The most reactive elements on the periodic table
are found in groups 1 and 17
are found in nature
are the transition metals
have a full outer energy level
5
Explain why the carbon atom is neutral.
Equal amounts of protons and electrons
Equal amounts of a electrons and neutrons
Equal amounts of all three particles
Equal amounts of protons and neutrons
6
Identify the element
lithium
beryllium
nitrogen
oxygen
7
You discover a new element, how will you know where it's placed on the periodic table?
all of the previous answers
look at its atomic number
look at its properties, they will tell the group
the number of energy levels will determine the period
8
The most reactive nonmetals on the periodic table are the ______.
noble gases
transition metals
halogens
alkali metals
9
Elements that share the same properties can be found in the same ____ on the periodic table.
group
row
cluster
period