Question

Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D) N, O, F O,S, Se C) As the elements in Period 3 are considered in order of increasing atomic number, there is a general decrease in C) atomic mass D) atomic radius A) first ionization energy B) electronegativity Element K reacts with chlorine to form an ionic compound that has the formula XCl,. To which group on the Periodic Table coul element X'belong? A) Group 15 Which atomattains a stable valence electron configuration by bonding with another atom? D) Group 1 C) Group 13 B) Group2 40) D) rador C) helium B) hydrogen A) neon An ionic bond can be formed when one or more electrons are 41) A) trans ferred from the valence shell of one atom to the valence shell of another atom B) equally shared by two atoms C) unequally shared by two atoms D) trans ferred from the nucleus of one atom to the nucleus of another atom Which phrase describes the distribution of charge and the polarity of a CH, molecule? 42) C) symmetrical and polar D) symmetrical and nonpolar A) asymmetrical and polar B) asymmetrical and nonpolar 43) Which one of the following statements explains why a molecule of CH4 is nonpolar? A) The bonds between the atoms in a CH4 molecule are ionic.