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471

P,Q,R and S are metals in the same group in the Periodic Table but in periods 3,4, 5 and 6 respectively which of them loses electrons least readily?

  • A. P
  • B. C
  • C. R
  • D. S
View Answer & Discuss (14) WAEC 2000
472

Elements which belong to the same group in the Periodic Table are characterized by

  • A. difference of +1 in the oxidation numbers of successive members
  • B. presence of the same number of outermost electrons in the respective atoms
  • C. difference of 14 atomic mass units between successive members
  • D. presence of the same number of electron shells in the respective atoms
View Answer & Discuss (1) WAEC 2001
473

The atom of an element X combines with aluminium (\(_{13}\)AI). What is the formula of the compound formed?

  • A. AIX 2
  • B. AI 2X
  • C. AI2X 2
  • D. AI 2X 3
View Answer & Discuss (7) WAEC 2001
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474

The presence of unpaired electrons in an atom of a transition metal gives rise to

  • A. paramagnetism
  • B. malleability
  • B. malleability
  • C. ductility
  • D. shiny appearance
View Answer & Discuss WAEC 2001
475

What is responsible for metallic bonding?

  • A. Sharing of electrons between the metal atoms
  • B. Attraction between the atomic unclei and cloud of electrons
  • C. transfer of electrons from one atom to another
  • D. Attraction between positive and negative ions
View Answer & Discuss WAEC 2001
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