Question

the elements of similar phisical property​

Answer 1

Answer:

Elements in the same group (that is, in the same column) tend to have similar chemical properties. This concept works extremely well for group 1 (alkali metals), group 2 (alkaline earths), and group 18 (noble gases).

Answer 2

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ELEMENTS OF SIMILAR PHYSICAL PROPERTY:

--》Elements that are positioned in the same column (or group) of the periodic table exhibit similar properties. This is due to the similar electronic configuration (more importantly the number of valence electrons).

Among the two groups given here, choice (b) Mg, Sr and Ba are alkaline earth elements (part of group IIA) in the periodic table. Other elements of this group are Be, Ca and Ra. All these elements form the alkaline earth metal group of the periodic table. All these elements have 2 valence electrons, which they can give up to attain a +2 charge as cations. They have certain common properties, including shiny and silver-white appearance.

In comparison, the choice (a) consists of elements Cd, Ca and C which are part of different groups. Ca is from group IIA, Cd is from group 12 and C is from group VI and hence have different properties

EXTRA INFORMATION:

--》Physical properties: can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter.

--》Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.

The three states of matter are: solid, liquid, and gas. The melting point and boiling point are related to changes of the state of matter. All matter may exist in any of three physical states of matter.

In the graphic on the left the solid and liquid forms of water - ice are shown.