Chem Bond Basics Quiz

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Test your chem bonds knowledge

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Dwita sisilia

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Chem Bond Basics Quiz


Chem Bond Basics QuizVersión en línea Test your chem bonds knowledge por Dwita sisilia 1 1) Which statement best defines an octet rule in simple terms? a Atoms aim to have 8 valence electrons to be stable. b Atoms aim to have 6 valence electrons to be stable. c Atoms always gain electrons to become noble gases. d Atoms seek 2 valence electrons for stability. 2 2) The duplet rule applies to which elements? a Sodium and Magnesium b Hydrogen and Helium (first period) c Lithium and Beryllium d Neon and Argon 3 3) What type of bond forms when electrons are transferred from a metal to a nonmetal? a Hydrogen bond b Covalent bond c Ionic bond d Metallic bond 4 4) In a covalent bond, what is a PEI? a A Free Electron b A Nonbonding Electron Pair (PEB) c A Bonding Electron Pair shared by two atoms d A Bonding Electron between different atoms 5 5) Which model describes electrons moving in a ‘sea’ around metal ions? a Electron sea model b Valence bond model c VSEPR model d Lewis dot model 6 6) When Na (Z=11) reacts with Cl (Z=17) to form NaCl, what happens? a Na gains 1 electron from Cl b They share one electron pair c Both gain electrons to become neutral d Cl gains 1 electron from Na 7 7) If X has 1 valence electron and Y has 7 valence electrons, what bond is likely? a Covalent bond (nonpolar) b Metallic bond c Ionic bond d Covalent bond (polar) 8 8) In H2O, what type of bond holds the O and H atoms together? a Hydrogen bond b Ionic bond c Polar covalent bond d Metallic bond 9 9) Why are metals malleable? a Strong ionic bonds allow movement b Delocalized electrons allow ions to slide past each other without breaking bonds c Covalent bonds rearrange easily d Electrons are tightly bound to atoms 10 10) How many bonding electron pairs (PEI) are in a double covalent bond like O2? a 4 PEI b 1 PEI c 3 PEI d 2 PEI Feedback 1 The octet rule states stability is reached with 8 valence electrons (2 for some early elements). 2 Duplet rule applies to H and He because their first shell holds only 2 electrons. 3 Electron transfer creates cations and anions that attract each other in an ionic bond. 4 PEI stands for Pasangan Elektron Ikatan—the shared bonding electron pair. 5 The electron sea model envisions delocalized electrons around a lattice of positive metal ions. 6 Sodium donates an electron, chlorine gains it, forming Na⁺ and Cl⁻, an ionic bond. 7 One atom tends to lose electrons and the other to gain, forming an ionic bond. 8 O and H share electrons; because of electronegativity differences, it is a polar covalent bond. 9 The ‘sea of electrons’ enables plastic deformation without disintegrating the lattice. 10 A double bond consists of two shared electron pairs (2 PEI).

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Chem Bond Basics Quiz

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Chem Bond Basics QuizVersión en línea

por Dwita sisilia

1) Which statement best defines an octet rule in simple terms?

2) The duplet rule applies to which elements?

3) What type of bond forms when electrons are transferred from a metal to a nonmetal?

4) In a covalent bond, what is a PEI?

5) Which model describes electrons moving in a ‘sea’ around metal ions?

6) When Na (Z=11) reacts with Cl (Z=17) to form NaCl, what happens?

7) If X has 1 valence electron and Y has 7 valence electrons, what bond is likely?

8) In H2O, what type of bond holds the O and H atoms together?

9) Why are metals malleable?

10) How many bonding electron pairs (PEI) are in a double covalent bond like O2?

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