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Introduction to the Periodic Table Flashcards | StudBud
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Introduction to the Periodic Table
Introduction to the Periodic Table
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Flashcards
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Questions
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Answers
1
Atomic mass minus atomic number equals the number of
none of these
protons
neutrons
electrons
2
What two particles make up the nucleus?
Protons and neutrons
Electrons and neutrons
Protons and electrons
3
A subatomic particle with a negative charge is a(n)
Proton
electron
molecule
neutron
4
What element has the atomic number 15
Potassium
Oxygen
Phosphorus
Chlorine
5
The majority of the mass of an atom comes from which subatomic particle(s)?
Neutrons + Electrons
Neutrons + Protons
Protons + Electrons
Protons
6
Which subatomic particle has the smallest mass?
Electrons
Protons
Neutrons
7
The formula for calculating neutrons in a atom is...
atomic mass - atomic number
atomic number - atomic mass
atomic number divided by 2
electrons - protons
8
What element has the atomic number 7
Calcium
nitrogen
Oxygen
Neon
9
On their periodic table, the atomic mass number equals the number of
Protons and Electrons
Protons and Neutrons
Neutrons
Electrons
10
what is the atomic number of gold?
79
29
30
47
