5 When a metal atom becomes a cation loses a a It gains an

Last updated: 5/10/2023

5 When a metal atom becomes a cation loses a a It gains an electron b It becomes a different isotope c Its atomic number changes d Its ionic radius is smaller than its atomic radius 6 Given these elements S Cl Se Br Ar a Which one has the largest radius b Which one is the most reactive valence election c Which one has the highest ionization energy d Which one is the least electronegative 7 The halogens tend to form anions because a They have low first ionization energies b They have low electron affinities c They have high electron affinities d They don t they form cations 8 Unknown element X has four energy levels five valence electrons and is a metalloid What is element X a Si b Ge c Se d As 9 Arrange the following elements in order of increasing effective nuclear charge Bi As P N Sb a Bi Sb As P N b N P As Sb Bi c Bi As P N Sb d N As P Bi Sb 10 An element with a greater effective nuclear atomic radius charge has a n a larger b smaller c undefined d constantly changing 11 Which elements would have the most similar properties a Li Be B c B C N b O S Se d K Ca Rb 12 Which of the following is not true about covalent compounds A they have low melting boiling points B they are formed by the sharing of electrons between atoms C they conduct electricity well D they are usually liquids or gasses at room temperature