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Atomic Structure & Periodic Table
Question | Answer |
---|---|
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) |