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Hydrogen, which is properly a member of the periodic column. If the properties of hydrogen are considered too little like those of the other elements in the this column, the alkali metals, so that only the latter are considered members of column IA, then the answer would be lithium.
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∙ 12y ago
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Why is the element hydrogen not part of a group?
It is (1A).
What is the evidence that suggests that hydrogen should be in the first column of the periodic table?
Hydrogen is a unique element of the Periodic Table. Due to its similarities in properties it can be placed at the top of group 1A or 4A or 7A.
Which element group has the most diverse set of properties?
group 1A
Which element of the group 1A has the largest atom?
It is supposed to be francium. but since it is radioactive and less stable, cesium is generally considered to the be element with largest size.
What is the 1st element?
Hydrogen is the "lightest" element.
What is the lightest element in group 18 of the periodic table?
Helium is the lightest member in group 18.
Why is the element hydrogen not part of a group?
It is (1A).
What is the lightest element in period of the periodic table?
Helium is the lightest member in group 18.
What is the evidence that suggests that hydrogen should be in the first column of the periodic table?
Hydrogen is a unique element of the Periodic Table. Due to its similarities in properties it can be placed at the top of group 1A or 4A or 7A.
Which element group has the most diverse set of properties?
group 1A
What element from Group 1A is most reactive?
francium
Which element in 1a group is more reactivity?
fransium
What group has element with the most diverse set of properties?
penis
Which element has one valence electrons?
Any element in group 1
What s block element is not located in group 1A or group 2A in the periodic table?
hydrogen
Is boron a compount or element?
Boron is an element. The lightest member of group 13 with 3 valence electrons
Why is hydrogen placed with the element in group 1a?
valence electrons and electronic configuration.
