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Atomic Structure & Periodic Table Flashcards | StudBud

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Atomic Structure & Periodic Table

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Questions 10

Answers

1
What color indicates metalloids on the periodic table?
Yellow
Blue
None of the above
Pink
2
In the following diagram, what does the number 12 represent?
An atomic mass
A chemical symbol
the number of electrons
An atomic number
3
Neon has an atomic number of 10, therefore....
It has 10 protons
All of the above
It has 10 neutrons
It has 10 electrons
4
Which of the following is true?
Groups and rows change depending on the year
Gasses for horizontal rows; categories form vertical rows
Groups form horizontal rows; Periods form vertical rows
Periods form horizontal rows; Groups form vertical rows
5
Oxygen has an atomic number of 8. What can you conclude from this fact?
An atom of oxygen weighs 8 grams
An atom of oxygen has 4 protons and 4 electrons
An atom of oxygen has 8 protons
An atom of oxygen has 8 positrons
6
What are valence electrons?
Electrons on the inner most energy level
Electrons that are positive
Electrons on the outer energy level
Electrons that like curtians
7
What do the elements highlighted in period 3 have in common?
the same number of protons
the same number of electrons
the same number of electron shells
The same atomic number
8
Atoms with 1 and 7 valence electrons are...
semi-reactive
non-reactive
very reactive
do not exist
9
What two types of particles exist within an atomic nucleus?
Positrons and Neutrons
Protons and Neutrinos
Neutrons and Electrons
Protons and Neutrons
10
Elements are organized in groups (families) because...
they have similar properties
they are in alphabetical order
the have the same number of energy levels
they are not arranged in order