Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
MediumWrite the trend of atomic size and metallic character along a group and a period in the modern periodic table.
(N/A) Trend of atomic size:
Along a group: From top to bottom,the atomic size increases because a new shell is added in each subsequent element.
Along a period: From left to right,the atomic size decreases because the nuclear charge increases,which pulls the electrons closer to the nucleus.
Trend of metallic character:
Along a group: Metallic character increases from top to bottom because the tendency to lose electrons increases due to the increase in atomic size.
Along a period: Metallic character decreases from left to right because the tendency to lose electrons decreases as the effective nuclear charge increases.
Along a group: From top to bottom,the atomic size increases because a new shell is added in each subsequent element.
Along a period: From left to right,the atomic size decreases because the nuclear charge increases,which pulls the electrons closer to the nucleus.
Trend of metallic character:
Along a group: Metallic character increases from top to bottom because the tendency to lose electrons increases due to the increase in atomic size.
Along a period: Metallic character decreases from left to right because the tendency to lose electrons decreases as the effective nuclear charge increases.
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Similar Questions
State Mendeleev's Periodic Law.
Easy
View SolutionThe position of some elements $A, B, C, D, E, F$ and $G$ in the Modern Periodic Table is given as under:
Group $\to$ $16$ $17$ $18$ Period $1$ $A$ Period $2$ $B$ $C$ $D$ Period $3$ $E$ $F$ $G$
$(a)$ In which group are inert elements placed?
$(b)$ What type of ions would $B, C, E,$ and $F$ form?
$(c)$ Which element would have chemical properties similar to $C$?
$(d)$ How many shells would $A$ have?
$(e)$ What is the similarity between $A$ and $D$?
$(f)$ Identify the most abundant element in the earth's crust.
| Group $\to$ | $16$ | $17$ | $18$ |
| Period $1$ | $A$ | ||
| Period $2$ | $B$ | $C$ | $D$ |
| Period $3$ | $E$ | $F$ | $G$ |
$(a)$ In which group are inert elements placed?
$(b)$ What type of ions would $B, C, E,$ and $F$ form?
$(c)$ Which element would have chemical properties similar to $C$?
$(d)$ How many shells would $A$ have?
$(e)$ What is the similarity between $A$ and $D$?
$(f)$ Identify the most abundant element in the earth's crust.
Medium
View SolutionTwo elements $M$ and $N$ belong to group $I$ and $II$ respectively and are in the same period of the periodic table. How do the following properties of $M$ and $N$ vary:
$(a)$ sizes of their atoms?
$(b)$ their metallic characters?
$(c)$ their valencies in forming oxides?
$(d)$ formulae of their chlorides?
$(a)$ sizes of their atoms?
$(b)$ their metallic characters?
$(c)$ their valencies in forming oxides?
$(d)$ formulae of their chlorides?
Medium
View SolutionAtomic numbers of a few elements are given below: $10, 20, 7, 14$.
$(a)$ What would be the electronic configuration for each of these elements?
$(b)$ Determine the valency of these elements.
$(a)$ What would be the electronic configuration for each of these elements?
$(b)$ Determine the valency of these elements.
Medium
View SolutionIf an element $X$ is placed in group $14$,what will be the formula and the nature of bonding of its chloride?
Easy
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