(a) The atomic number of the given element is 2 + 8 + 7(= 17). (b) It would be chemically similar to fluorine [F(9)] because its electronic configuration is 2, 7.
(a) The atomic number of the given element is 2 + 8 + 7(= 17).
(b) It would be chemically similar to fluorine [F(9)] because its electronic configuration is 2, 7.
(b) X elements from compound XCl2 which is most likely formed compound as magnesium because of having the same valency whereas the rest of other elements as Na, Al and Si don't match the valence electron to that of X.
(b) X elements from compound XCl2 which is most likely formed compound as magnesium because of having the same valency whereas the rest of other elements as Na, Al and Si don’t match the valence electron to that of X.
An atom has electronic configuration 2, 8, 7. What is the atomic number of this element?
(a) The atomic number of the given element is 2 + 8 + 7(= 17). (b) It would be chemically similar to fluorine [F(9)] because its electronic configuration is 2, 7.
(a) The atomic number of the given element is 2 + 8 + 7(= 17).
See less(b) It would be chemically similar to fluorine [F(9)] because its electronic configuration is 2, 7.
What property do all elements in the same column of the Periodic Table as fluorine have in common?
Elements in the same column or group as fluorine form acidic oxides and have seven electrons in their outermost shells and have valency of one.
Elements in the same column or group as fluorine form acidic oxides and have seven electrons in their outermost shells and have valency of one.
See lessWhat property do all elements in the same column of the Periodic Table as boron have in common ?
Elements in the same column or group as boron have valency of three and have three valence electrons.
Elements in the same column or group as boron have valency of three and have three valence electrons.
See lessWhich element has
(a) Neon (2, 8) (b) Magnesium (c) Silicon (2, 8, 4) (d) Boron (2, 3) (e) Carbon (2, 4)
(a) Neon (2, 8)
See less(b) Magnesium
(c) Silicon (2, 8, 4)
(d) Boron (2, 3)
(e) Carbon (2, 4)
Element X forms a chloride with the formula XCl2, which is a solid with a high melting point. X would most likely be in the same group of the Periodic Table as
(b) X elements from compound XCl2 which is most likely formed compound as magnesium because of having the same valency whereas the rest of other elements as Na, Al and Si don't match the valence electron to that of X.
(b) X elements from compound XCl2 which is most likely formed compound as magnesium because of having the same valency whereas the rest of other elements as Na, Al and Si don’t match the valence electron to that of X.
See less