What do the elements of a period have in common? Select all that apply.the same number of electron energy levelssimilar physical characteristicstransition from a metal to noble gassimilar chemical characteristics

37. In which set of elements would all members be expected to have very similar chemical properties? Note that elements belonging to the same group DO have similar chemical properties. Elements belonging to the same period DO NOT have similar chemical properties. 1 pointS, Se, SiNe, Na, MgN, O, FNa, Mg, KO, S, Se

Select the correct answer.In the periodic table of elements, what do all of the elements in group 2 have in common? A. An atom of each element can hold up to eight electrons in its outer energy level. B. An atom of each element can hold up to six electrons in its outer energy level. C. Each element is an alkaline earth metal. D. Each element is a halogen. E. Each element is dull, brittle, and breaks easily.Reset Next

Why do elements within a period of the periodic table have different properties?A.They have different arrangements of core electrons.B.They have different numbers of valence electrons.C.They have different combinations of protons and neutrons.D.Some are metals and some are nonmetals.SUBMITarrow_backPREVIOUS

. Periods on the periodic table represent elements:1 pointin the same groupwith consecutive atomic numbersknown as isotopeswith similar chemical properties

For each of the following, give the name of an element from Period 2 (lithium to neon), whichmatches the description. Elements may be used once, more than once or not at all. (i) anelement which is gaseous at room temperature and pressure.......................................................................................................................................(ii) an element which forms an oxide that is a reactant in photosynthesis.......................................................................................................................................(iii) an element that is a product of photosynthesis.......................................................................................................................................(iv) an element that makes up approximately 78% by volume of the air.......................................................................................................................................(v) an element which has atoms with a full outer shell of electrons.......................................................................................................................................(vi) an element which exists as both diamond and graphite.......................................................................................................................................(vii) an element that reacts vigorously with cold water.......................................................................................................................................(viii) a soft metallic element which is stored in oil.......................................................................................................................................(b) Give the formula of a compound that contains(i) only boron and oxygen, ................................................................................................(ii) only lithium and nitrogen. ..............