Use the periodic tableto answer the following questions.
(a) Identify anelement with five electrons in the outer subshell.
(b) Identify anelement that would tend to lose two electrons.
(c) Identify anelement that would tend to gain two electrons.
(d) Identify the group having metal, non-metal, liquid as well asgas at the room temperature.
Use the periodic tableto answer the following questions.
(a) Identify anelement with five electrons in the outer subshell.
(b) Identify anelement that would tend to lose two electrons.
(c) Identify anelement that would tend to gain two electrons.
(d) Identify the group having metal, non-metal, liquid as well asgas at the room temperature.
(a) The electronic configuration of an element having 5electrons in its outermost subshell should be ns2np5. This is the electronic configuration of thehalogen group. Thus, the element can be F, CL, Br, I, or At.
(b) An element having two valence electrons will lose twoelectrons easily to attain the stable noble gas configuration. Thegeneral electronic configuration of such an element will be ns2.This is the electronic configuration of group 2 elements. Theelements present in group 2 are Be, Mg, Ca, Sr, Ba.
(c) An element is likely to gain two electrons if it needsonly two electrons to attain the stable noble gas configuration.Thus, the general electronic configuration of such an element shouldbe ns2 np4. This is theelectronic configuration of the oxygen family.
(d) Group 17 has metal,non–metal, liquid as well as gas at room temperature.
(a) The electronic configuration of an element having 5electrons in its outermost subshell should be ns2np5. This is the electronic configuration of thehalogen group. Thus, the element can be F, CL, Br, I, or At.
(b) An element having two valence electrons will lose twoelectrons easily to attain the stable noble gas configuration. Thegeneral electronic configuration of such an element will be ns2.This is the electronic configuration of group 2 elements. Theelements present in group 2 are Be, Mg, Ca, Sr, Ba.
(c) An element is likely to gain two electrons if it needsonly two electrons to attain the stable noble gas configuration.Thus, the general electronic configuration of such an element shouldbe ns2 np4. This is theelectronic configuration of the oxygen family.
(d) Group 17 has metal,non–metal, liquid as well as gas at room temperature.
