(a)
Interpretation:
The Roman numeral periodic – table group number and valence electrons of
Concept Introduction:
The electrons present in the outermost shell of the atom are known as valence electrons.
Valence electrons are important because:
- The valence electrons decide the reactivity of an element.
- The valence electrons decide the manner in which an atom form a bond with another atom.
- The valence electron in an atom decides the combining capacity of the element.
- Except inner
transition elements valence electrons are present in s or psubshells of elements. - For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.
- The group number is similar to number of valence electrons of an atom.
(b)
Interpretation:
The Roman numeral periodic – table group number and valence electrons of
Concept Introduction:
The electrons present in the outermost shell of the atom are known as valence electrons.
Valence electrons are important because:
- The valence electrons decide the reactivity of an element.
- The valence electrons decide the manner in which an atom form a bond with another atom.
- The valence electron in an atom decides the combining capacity of the element.
- Except inner transition elements valence electrons are present in s or psubshells of elements.
- For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.
- The group number is similar to number of valence electrons of an atom.
(c)
Interpretation:
The Roman numeral periodic – table group number and valence electrons of
Concept Introduction:
The electrons present in the outermost shell of the atom are known as valence electrons.
Valence electrons are important because:
- The valence electrons decide the reactivity of an element.
- The valence electrons decide the manner in which an atom form a bond with another atom.
- The valence electron in an atom decides the combining capacity of the element.
- Except inner transition elements valence electrons are present in s or psubshells of elements.
- For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.
- The group number is similar to number of valence electrons of an atom.
(d)
Interpretation:
The Roman numeral periodic – table group number and valence electrons of
Concept Introduction:
The electrons present in the outermost shell of the atom are known as valence electrons.
Valence electrons are important because:
- The valence electrons decide the reactivity of an element.
- The valence electrons decide the manner in which an atom form a bond with another atom.
- The valence electron in an atom decides the combining capacity of the element.
- Except inner transition elements valence electrons are present in s or psubshells of elements.
- For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.
- The group number is similar to number of valence electrons of an atom.
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