All elements are similar in that they contain protons and neutrons 'fused' into their nucleus, surrounded by the same number of electrons as protons. They are grouped in the Periodic Table according to their physical properties, eg transition metals, inert gases, rare earth elements etc.
mg sr and ba
Ca,Ba,Sr
and
Cl,Br,I
The elements if arranged according to their atomic weights, exhibit an periodicity of properties
Elements arranged in one column exhibit similar chemical properties. Elements in same column also have similar physical properties. Also elements in same column has similar electronic configuration.
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what are the chemical properties of nitrogen
The elements that are commonly recognized as metalloids or semimetals are boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), and tellurium (Te). These elements exhibit properties of both metals and nonmetals, such as being good conductors of electricity but also brittle and less malleable.
The elements if arranged according to their atomic weights, exhibit an periodicity of properties
Elements arranged in one column exhibit similar chemical properties. Elements in same column also have similar physical properties. Also elements in same column has similar electronic configuration.
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.
Metals are elements that are usually malleable, ductile, conductive of heat and electricty, and lusterous. Non metals are elements that do not exhibit these characteristics. Metaloids are elements with intermediate properties.
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Nonmetal is a term used in chemistry. It is a classification for elements that do not exhibit the properties of metals. Nonmetals form molecules and there are only 18 elements in the periodic table that are classified as such.
what are the chemical properties of nitrogen
They share the same genes
no respiration
flammable & corrosive
Epithelial tissue does not exhibit polarity.
Scandium and yttrium are considered rare earth elements since they tend to occur in the same ore deposits as the lanthanoids and exhibit similar chemical properties.