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Atomic Structure & Periodic Table

QuestionAnswer
What subatomic particles have relatively large, approximately equal masses? Protons and neutrons
What subatomic particles have relatively small masses compared to the other subatomic particles? Electrons
Which subatomic particle has positive charge? Proton
Which subatomic particle has negative charge? Electron
Which subatomic particle has no charge? Neutron
Where are protons located in the atom? Atom’s nucleus
Where are neutrons located in the atom? Atom’s nucleus
Where are electrons located in the atom? Atom’s electron cloud
What is the mass number? Sum of atom’s numbers of protons and neutrons
What is the atomic number? Number of protons
If an atom has an atomic number of 5, what element type is it? (Use Periodic Table for this question) Boron
If an atom has an atomic number of 5, how many protons does it have? 5
If an atom has an atomic number of 5 and is neutral, how many electrons does it have? 5
If an atom has an atomic number of 5 and a mass number of 12, how many neutrons does it have? 7
Which element type(s) (metals, nonmetals or metalloids) can conduct electricity and heat? Metals and metalloids
Which element type(s) (metals, nonmetals or metalloids) are the best conductors? Metals
Which element type(s) (metals, nonmetals or metalloids) do not conduct electricity or heat well? Nonmetals
Which element type(s) (metals, nonmetals or metalloids) tend to be insulators? Nonmetals
Which element type(s) (metals, nonmetals or metalloids) tend to be malleable and ductile? Metals
Which element type(s) (metals, nonmetals or metalloids) tend to have the most luster? Metals
Which physical property describes a material’s shininess? Luster
Which physical property describes a material’s ability to be worked into sheets? Malleability
Which physical property describes a material’s ability to be worked into wired? Ductility
Which physical property describes a material’s ability to transfer electricity and heat? Conductivity
What are columns in the Periodic Table called? groups
What are rows in the Periodic Table called? periods
Elements in the same group have the same number of ____________ Valence electrons
Elements in the same period have the same number of _______________ Electron energy levels
Which element type(s) (metals, nonmetals or metalloids) tend to be located on the bottom, left side of Periodic Table? metals
Which element type(s) (metals, nonmetals or metalloids) tend to be located on the top, right side of Periodic Table? nonmetals
Elements with similar reactivity are located in the same _______________ Group (Column in Periodic Table)
Elements with same number of electron energy levels are located in the same ______________ Period (Row of Periodic Table)
Elements in the same period are in the same _______ of the Periodic Table. row
Elements in the same group are in the same ________ of the Periodic Table. column
If an element is in Group 15 how many valence electrons does it have? Use Periodic Table for this question. 5
If an element is in Group 18 how many valence electrons does it have? Use Periodic Table for this question. 8
If an element is in Group 2 how many valence electrons does it have? Use Periodic Table for this question. 2
If an element is in Group 17 how many valence electrons does it have? Use Periodic Table for this question. 7
What group has the most reactive elements? Group 1 (1 valence electron, 1 valence electron to lose) or Group 17 (7 valence electrons, 1 valence electron to gain)
If an element has in Period 3 how many valence electrons does it have? Varies, number of valence electrons depends on column (group number) not row (period number)
An element with 5 valence electrons is in what group? Group 15 or 5A
An element with 2 valence electrons is in what group? Group 2 or 2A
An element with 8 valence electrons is in what group? Group 18 or 8A
What group has the least reactive elements? Group 18 (8 valence electrons in outer shell)
Created by: DrTrinidad