History of Periodic Table
Periodic Table 1
Periodic Table 2
Trends 1
Trends 2
100
The physical and chemical properties of the elements are periodic functions of their atomic numbers.
What is the periodic law?
100
The name for all of the groups containing the s and p block elements.
What is the main group elements?
100
the one element in the periodic table that is set off by itself due to its unique properties
What is hydrogen?
100
a negative ion
What is an anion?
100
This is defined as one half the distance between the nuclei of identical atoms that are bonded together.
What is atomic radius (or bond radius)?
200
The person who organized the periodic table based on atomic numbers and not atomic mass.
What is Henry Moseley?
200
the electron configuration for elements in Group 1 and Group 2
What is group 1: ns^1 and group 2 ns^2?
200
the most reactive nonmetals
What are the halogens?
200
This is the amount of energy required to remove one electron from an atom.
What is ionization energy?
200
This is the trend for ionization energy as you move across a period.
What is ionization energy increases left to right?
300
The group of elements on the periodic table that were discovered much later due to their lack of chemical reactivity.
What is the noble gases?
300
the group and period where this element is found: {Ar}4s^2 4p^4
What is Period 4 and Group 16?
300
the name of the group 2 elements
What are the alkaline earth metals?
300
This is the type of ion whose ionic radii will decrease compared to the neutral atom.
What is cation?
300
This is the measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
What is electronegativity?
400
This man was the first scientist to create a working periodic table, organized by atomic mass.
Who is Demetri Mendeleev?
400
The name of the elements that make up the d and f blocks
What are the transition elements, lanthanides, and actinides?
400
the block of elements that contains metals, metalloids, and nonmetals
What is the p block?
400
This is the electron affinity value for a noble gas.
What is 0?
400
This is the energy released when an atom gains an electron.
What is electron affinity?
500
These are the two series which were added after Mendeleev's version of the periodic table, in addition to the noble gases.
What is the lanthanide and actinide series?
500
the harder and stronger metals of the s block with the higher melting points and slightly lower reactivity than the Alkali metals
What are the alkaline earth metals?
500
the elements that have properties of both metals and non-metals and include boron, silicon, germanium, arsenic, antimony, and tellurium in the p block
What are metalloids?
500
This is the trend across a period and the trend down a group for electronegativity.
What is increase left to right across a period and decrease down a group?
500
Of Al, Mg and Cl, the element with the largest atomic radius.
What is magnesium?
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