How many elements occur naturally?A.6B.25C.90D.118SUBMITarrow_backPREVIOUS

39. Write the abbreviated hyphen notation (element name-mass number) of the most common isotope of an element that has 6 valence electrons based on its electron arrangement in the ground state (there are more than one answer, give only one possible answer, don't put space between any part of the answer, and type all LOWRCASE LETTERS PLEASE)1 pointYour answer

3. Which element in the periodic table forms maximum number of compounds ?H O S C

Which elements have the same number of neutronsGroup of answer choices55 25 Mn and 56 26 FeNo answer text provided.108 47 Ag and 112 48 Cd10 5 B and 16 6 C

The table shows the atomic structure of four elements.ElementNumber of electronsNumber of neutronsNumber of protonsElectron configurationW1112112, 8, 1X1516152, 8, 5Y1718172, 8, 7Z1822182, 8, 8Question promptWhich two elements can form an ionic compound?Question response areaSelect one optionW and ZW and YX and YY and Z

Which species contains the same number of electrons and neutrons?A.11 HB.21 H −C.73 Li+D.3517 Cl−Page 10 of 77