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History of Periodic Table
Periodic Table
Periodic Table
Trends
Trends
100
The physical and chemical properties of the elements are periodic functions of their atomic numbers
What is the periodic law
100
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
defined as one half the distance between the nuclei of identical atoms that are bonded together
What is atomic radii
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 is the halogens
200
any process that results in the formation of an ion
What is inoization
200
true of false: that ionization energy as you move across a period increases
What is true
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 is the alkaline earth metals
300
the type of ion whose ionic radii will decrease as a result of the formation of this type of ion
What is cation
300
the measure of the ability of an atom in a chemical compound to attract electrons from anouther atom in the compound
What is electronegativity
400
One of the three elements that Mendeleeve predicted would be discovered and accurately predicated their properties.
What is scandium, gallium, and germanium
400
the name of the elements that make up the d and f blocks
What is the transistion elements, lanthanides, and actinides
400
the block of elements that contains metals, metalloids, and nonmetals
What is the p block
400
the electron affinity value of an atom that absorbs energy when it gains an electron
What is 0
400
the number of valence electrons in group 15
What is 5
500
the three sets of elements that were discovered and added to the periodic table after Mendeleeve
What is the noble gases, the lanthanides, and actinides
500
the harder and stronger metals of the s block with the higher metling points
What is the alkaline earth metals
500
the elements that include boron, silicon, germanium, arsenic, antimony, and tellurium which are all in the p block
What is metalloids
500
the trend across a period and the trend down a group for electronegativity
What is increase down a period and decrease or remain the same down a group
500
All of these elements are in the 3rd period. Al is in group 13, Mg is in group 2, and Cl is in group 17. The element with the largest atomic radii
What is magnesium