PT
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| periodic table | an arrangement of known elements based on each elements atomic number
🗑
|
||||
| atomic number | number of protons in the nucleus of an atom
🗑
|
||||
| a group | vertical column found in the periodic table
🗑
|
||||
| a group | elements in this have similar chemical and physical properties
🗑
|
||||
| a group | have the same number of valence electrons
🗑
|
||||
| valence electrons | electrons found in the outermost energy level of an atom
🗑
|
||||
| valence electrons | electrons involved in chemical reactions
🗑
|
||||
| period number | represents the number of energy levels an atom has
🗑
|
||||
| name of elements found in column 1A | alkali metals
🗑
|
||||
| name of elements found in column 2A | alkaline earth metals
🗑
|
||||
| name of elements found in column 3A | boron family
🗑
|
||||
| name of elements found incolumn 4A | carbon family
🗑
|
||||
| name of elements found incolumn 5A | nitrogen family
🗑
|
||||
| name of elements found in column 6A | oxygen family
🗑
|
||||
| name of elements found in column 7A | halogen family
🗑
|
||||
| name of elements found in column 8A | noble gases
🗑
|
||||
| one | number of valence electrons for family 1A
🗑
|
||||
| a period number | represents the number of energy levels an atom has
🗑
|
||||
| alkali metals
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
|||||
| one electron | number of valence electrons for family 1A
🗑
|
||||
| two electrons | number of valence electrons for family 2A
🗑
|
||||
| three electron | number of valence electrons for family 3A
🗑
|
||||
| four electrons | number of valence electrons for family 2A
🗑
|
||||
| five electrons | number of valence electrons for family 5A
🗑
|
||||
| six electrons | number of valence electrons for family 6A
🗑
|
||||
| seven electrons | number of valence electrons for family 7A
🗑
|
||||
| eight electrons | number of valence electrons for family 8A
🗑
|
||||
| plus one | oxidation number for family 1A
🗑
|
||||
| plus two | oxidation number for family 2A
🗑
|
||||
| plus three | oxidation number for family 3A
🗑
|
||||
| plus or minus four | oxidation number for family 4A
🗑
|
||||
| plus three | oxidation number for family 5A
🗑
|
||||
| minus two | oxidation number for family 6A
🗑
|
||||
| minus one | oxidation number for family 7A
🗑
|
||||
| zero | oxidation number for family 8A
🗑
|
||||
| metals | families IA-3A
🗑
|
||||
| nonmetals | families 4A-8A
🗑
|
||||
| metals | malleable
🗑
|
||||
| malleable | able to pound into different shapes
🗑
|
||||
| metals | good conductors of electricity and heat
🗑
|
||||
| metals | give electrons away
🗑
|
||||
| nonmetals | poor conductor of heat and electricity
🗑
|
||||
| nonmetals | brittle(break easily)
🗑
|
||||
| metals | have a shiny appearance
🗑
|
||||
| nonmetals | have a dull appearance
🗑
|
||||
| noble gases | chemically inactive (will not normally combine chemically with other elements)
🗑
|
||||
| alkali metals | are highly reactive metals
🗑
|
||||
| halogens | are highly reactive nonmetals
🗑
|
||||
| metals | are ductile (can be pulled into wires)
🗑
|
||||
| metals | have valence electrons weakly held
🗑
|
||||
| nonmetals | valence electrons held strongly
🗑
|
||||
| increase | moving down a column, what happens to atomic size
🗑
|
||||
| decrease | moving down a column, how strongly valence electrons are held
🗑
|
||||
| metalloids | having characteristics of metals an nometals
🗑
|
||||
| transition metals | located in middle section of periodic table
🗑
|
||||
| transition metals | a given element may have atoms with a number of different oxidation numbers
🗑
|
||||
| rule of octet | atoms combine with one another in order to fill their outermost energy level or have 8 electrons
🗑
|
||||
| nonmetals | tend to gain electrons
🗑
|
||||
| lanthanoid elements | made of soft, malleable metals with high luster and conductivity
🗑
|
||||
| actinoid elements | radioactive and many are man made
🗑
|
||||
| Antoine Lavoisier | grouped the known elements into 4 categories---metals, nonmetals, gases and earth
🗑
|
||||
| Mendeleev | a card game prompted him to classify all known elements
🗑
|
||||
| periodic table | an arrangement of elements in columns, based on a set of properties that repeat from row to row
🗑
|
||||
| What does the period number (1-7) tell you about the structure of an atom? | the period number is an indication of the number of energy levels an atom of a given element will have.
🗑
|
||||
| What does the group number(IA-8A) tell you about the structure of an atom? | the group number tells you the number of electrons found in the outermost energy level of the atom
🗑
|
||||
| mercury | only metal that is liquid at room temperature
🗑
|
||||
| characteristics of metals | lustrous, ductile, malleable, conductors of heat and electricity, high melting points,give electrons away, form positive ions
🗑
|
||||
| transition elements | have the ability to form compound with distinctive colors.
🗑
|
||||
| characteristics of nonmetals, | dull color, non-malleable, poor conductors of heat and electricity, relatively low melting points, take electrons, and form negative ions.
🗑
|
||||
| fluorine | the most chemically active nonmetal
🗑
|
||||
| How do chemical and physical characteristics vary as one moves across the periodic table from left to right? | the elements become less metallic and more nonmetallic in their properties.
🗑
|
||||
| Which electrons are responsible for the chemical activity of the atom? | valence electrons
🗑
|
||||
| What happens to the number of valence electrons as one moves across a period? | the number of valence electrons increase as one moves across the period
🗑
|
||||
| Why do the elements in a given group have similar chemical activity? | They have similar chemical activity because they have the same number of valence electrons.
🗑
|
||||
| How does the reactivity of alkali metals change from top to bottom in group IA? | reactivity increases from top to bottom
🗑
|
||||
| aluminum | the most abundant metallic element in the Earth's crust
🗑
|
||||
| noble gases | colorless and odorless and extremely nonreactive
🗑
|
||||
| In Mendeleev's periodic table, elements with similar properties were grouped how? | in the same column
🗑
|
||||
| How many periods does the modern periodic table have? | 7
🗑
|
||||
| What information did Mendeleev have about the elements he organized into a periodic table? | Mendeleev knew their relative masses and properties
🗑
|
||||
| Why is the periodic table called the "periodic table"? | The table is called a periodic table because the properties of the elements repeat at regular intervals from row to row
🗑
|
||||
| Why does the number of elements vary from period to period? | The number of elements per period varies because the number of orbitals incerease as the energy level increases.
🗑
|
||||
| Explain how the atomic mass of an element is affected by the distribution of its isotopes in nature. | The atomic mass is a weighted average of the atomic masses of an element's isotopes. The distribution of the isotopes determine how much each isotope affectes the weighted average.
🗑
|
||||
| In general, what happens to the reactivity of elements in groups labled A as atomic number increase across a period> | Across a period from left to right, metals become less reactive and nonmetals become more reactive.
🗑
|
||||
| Why don't the elements with an A group in the periodic table have identical properties? | Elements in the same A group don't have identical properties because their valence electrons are in different energy levels.
🗑
|
||||
| How many valence electrons would an element with an atomic number of 12 and an atom mass number of 24? | 2
🗑
|
||||
| How many full energy levels would an element with an atomic number of 12 and an atom mass number of 24? | 2
🗑
|
||||
| How many energy levels would an element with an atomic number of 12 and an atom mass number of 24? | 3
🗑
|
||||
| How many electrons would an element with an atomic number of 12 and an atom mass number of 24? | 12
🗑
|
||||
| How many neutrons would an element with an atomic number of 12 and an atom mass number of 24? | 12
🗑
|
||||
| How would you calculate the number of neutrons in an atom? | To calculate the number of neutrons in an atom, subtract the atomic number from the atomic mass number
🗑
|
||||
| Why is hydrogen located in a group with reactive metals? | hydrogen is placed with other elements that have a single valence electron.
🗑
|
||||
| Which group of elements are least reactive? | Noble Gases
🗑
|
||||
| Why are Noble Gases chemically inactive. | Noble gases are chemically inactive due to the fact that all have a full outermost energy level or at least 8 electrons.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
johnwhitfield35125
Popular Physical Science sets