energy and half-life are not directly related
All of the choices are true
Properties of Hydrogen. Hydrogen is a nonmetal and is placed above group in the Periodic Table because it has ns1 electron configuration like the alkali metals.
Periodic table group elements with same properties together. Hence their properties can be identified.
It is placed in group 1, period 1 on the modern periodic table
The physical properties are not listed in periodic table. The properties like density is not listed.These can't be found on periodic table.
All of the choices are true
Properties of Hydrogen. Hydrogen is a nonmetal and is placed above group in the Periodic Table because it has ns1 electron configuration like the alkali metals.
If the elements (which were discovered by his time) were organized in the increasing order of their atomic weight, they will exhibit an apparent periodicity of properties. It also had the ability to predict physical and chemical properties of some undiscovered elements.
Position of Periodic Table describes chemical properties. it is estimated from its position in table.
Periodic table group elements with same properties together. Hence their properties can be identified.
On the dinner table.
It is placed in group 1, period 1 on the modern periodic table
Yes it is above the water table.
Primary key is to set property ID as the primary key for the properties table.
Table labels typically go above the table in a document.
The physical properties are not listed in periodic table. The properties like density is not listed.These can't be found on periodic table.
The five properties Mendeleev used in his table were atomic mass, chemical properties, valency (oxidation state), color, and density.