Which of the elements in the following periodic table are halogens? What main group in the periodic table has elements with the largest electron affinities for each period? What group of elements has only unstable negative ions? What is the atomic number of th...
Which of the following groups of elements contains the most valence electrons? (a) Halogens (b) Chalcogens (c) Noble gases (d) Alkali metals Valence Electrons: Valence electrons are electrons in the outermost shell of an atom. Gene...
Which sublevel begins to fill with transition elements? Which element belongs to the s-block of the periodic table? (a) alkali metals (b) noble gases (c) halogens (d) transition metals. What are the key atomic properties (charge, shielding, or...
Alkaline earth metals are elements that belong under group II of the periodic table having valence electrons at the s-orbital of the element. Because alkaline earth metals have two electrons more than the nearest noble gas configuration of the previous period, the ions they form c...
Elements that belong to the F-block are elements that have their valence electrons in the f orbital which allows up to 14 electrons before being filled. Elements belonging to the F-block include the lanthanide and actinide groups. Answer and Explanation:...
Which element belongs to the s-block of the periodic table? (a) alkali metals (b) noble gases (c) halogens (d) transition metals. What element is the most reactive in the periodic table? Explain why. What elements are part of the alkali earth metal group? What are...
Name an element in the third period of the periodic table with 3 valence electrons. Name an element in the fourth period (row) of the periodic table with five valence electrons. Which group of the periodic table is known as the n...