Element M is a shiny and highly reactive metal ( melting point 63°C ) , and element X is a highly reactive nonmetal ( melting point -7 .2ºC ) . They react to form a compound with the empirical formula MX. a colorless, brittle white solid that melts at 734ºC . When dissolved in water or when in the molten state, the substance conducts electricity. When chlorine gas is bubbled through an aqueous solution containing MX. a reddish-brown liquid appears and Cl - ions are formed. From these observations, identify M and X. (You may need to consult a handbook of chemistry for the melting-point values.)
Element M is a shiny and highly reactive metal ( melting point 63°C ) , and element X is a highly reactive nonmetal ( melting point -7 .2ºC ) . They react to form a compound with the empirical formula MX. a colorless, brittle white solid that melts at 734ºC . When dissolved in water or when in the molten state, the substance conducts electricity. When chlorine gas is bubbled through an aqueous solution containing MX. a reddish-brown liquid appears and Cl - ions are formed. From these observations, identify M and X. (You may need to consult a handbook of chemistry for the melting-point values.)
Solution Summary: The author explains that the elements M and X are to be identified on the basis of given information.
Element M is a shiny and highly reactive metal
(
melting point 63°C
)
, and element X is a highly reactive nonmetal
(
melting point -7
.2ºC
)
. They react to form a compound with the empirical formula MX. a colorless, brittle white solid that melts at
734ºC
. When dissolved in water or when in the molten state, the substance conducts electricity. When chlorine gas is bubbled through an aqueous solution containing MX. a reddish-brown liquid appears and Cl- ions are formed. From these observations, identify M and X. (You may need to consult a handbook of chemistry for the melting-point values.)
Element M reacts with Bromine to form a compound with the formula MBr3. Element M has higher ionization energy than Mg and has s smaller radius. This element is:
Element M reacts with Chlorine to form a compound with the formula MCl2 Element M is more reactive than Mg and has a smaller metallic character. This element is:
Arrange in order of increasing nonmetallic character. (Use the appropriate <, =, or > symbol to separate substances in the list.)
(a) the Period 4 elements V, Ge, and K
(b) the Group 5A elements N, As, and Bi
Arrange in order of increasing atomic size. (Use the appropriate <, =, or > symbol to separate substances in the list.)
(a) the Period 3 elements Mg, Si, and Ar (b) the Group 2A elements Ca, Ba, and Sr
Given the following information, identify the groupfrom the periodic table that contains elements that behave likemain-group element “E.”(i) The electron affinity of E is greater than zero.(ii) The ionization energy (IE) trend for element E is: firstionization energy < second ionization energy <<< thirdionization energy.(iii) Samples of E are lustrous and are good electricalconductors.
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Lanthanoids and its Position in Periodic Table - D and F Block Elements - Chemistry Class 12; Author: Ekeeda;https://www.youtube.com/watch?v=ZM04kRxm6tY;License: Standard YouTube License, CC-BY