Is oxygen more electronegative than bromine?
There are various scales, which draw on various parameters, of which the Pauling scale is the most famous. You will have to look up the Pauling scale yourself, but the O atom, first row, and rightmost on the table, will be most electronegative, followed by nitrogen and bromine.
Which statement best describes group 2 elements?
Which statement best describes group 2 elements as they are considered in order from top to bottom of the Periodic Table? The number of principle energy levels increases, and the number of valence electrons remains the same.
Which element in group 17 has the highest electronegativity?
fluorine
Which properties are characteristic of group 2 elements at STP?
At STP, these elements are shiny, soft, silvery-white metals that have industrial as well as biological importance. Group 2 elements react with oxygen to form metal oxides, halogens to form halides, water to form hydroxides.
What are the key properties of Group 2 metals?
For a metal, alkali earth metals tend to have low melting points and low densities. Being a metal, they are obviously good conductors of heat and electricity. The general electronic configuration of Group 2 elements is ns2. Alkali earth metals have the capability to lose the two electrons in their outer shell.
Which three elements are arranged according to increasing electronegativity values?
On the basis of their positions in the periodic table, arrange Cl, Se, Si, and Sr in order of increasing electronegativity and classify each as a metal, a nonmetal, or a metalloid.
Which list contains elements arranged in order of increasing electronegativity?
But when we move from left to right in a period then due to decrease in size of the atoms there will be increase in electronegativity of the atoms. Thus, we can conclude that K, Ca, Sc list of elements is arranged in order of increasing electronegativity.
Which trend is observed as the first four elements?
ANSWER: The melting and boiling points increase in order of increasing atomic number. The size of the nucleus increases in order of increasing atomic number.
Which has the largest atomic radius among Group 16 elements?
polonium
Is the first elements of group 16?
Oxygen (O) is the first element of group 16 .