A) Electron cloud B) Shell C) Orbit D) Energy band
A) Schrodinger’s B) Rutherford’s C) Thomson’s D) Bohr’s Atomic Model
A) 3d B) 4s C) 3p D) 3s
A) Bohr B) Rutherford C) J.J. Thomson D) Dalton
A) Plum pudding B) Planetary C) Quantum Mechanical Model D) Nuclear
A) 10 B) 2 C) 14 D) 6
A) attraction between ions B) gaining of protons C) transfer of electrons D) sharing of electrons
A) Atoms that gain or lose electrons B) Atoms that form molecules C) Atoms with no charge D) Atoms with equal protons and electrons
A) Proton B) Neutral atom C) Cation D) Anion
A) Proton B) Metal C) Cation D) Anion
A) Atomic number B) Isotopes C) Valence electrons D) Mass number
A) CO₂ B) NaCl C) MgCl₂ D) KBr
A) Octet Rule B) Periodic Rule C) Bonding Rule D) Stability Rule
A) Cl– B) Cl+ C) Cl2– D) Cl2+
A) 1s² 2s² 2p⁴ B) 1s² 2s¹ 2p⁶ C) 1s² 2s² 2p⁵ D) 1s² 2s² 2p⁶
A) Sulfur B) Chlorine C) Aluminum D) Argon
A) Solid or gas B) Liquid only C) Gas or liquid D) Solid only
A) Anion B) Molecule C) Isotope D) Cation
A) Bohr B) Rutherford C) Thomson D) Dalton
A) Rutherford B) Dalton C) Bohr D) J.J. Thomson
A) Bohr B) Rutherford C) Chadwick D) Thomson
A) Erwin Schrodinger B) Bohr C) Dalton D) Heisenberg
A) Dalton B) Schrodinger C) Bohr D) Democritus
A) Nonmetals B) Noble gases C) Metals D) Metalloids
A) Nonmetals B) Noble gases C) Metals D) Metalloids
A) Neutral sodium B) Sodium ion that lost one electron C) Sodium atom D) Sodium ion that gained an electron
A) 1 B) 2 C) 4 D) 3
A) 5 B) 7 C) 1 D) 3
A) Mg2Br2 B) MgBr2 C) Mg2Br D) MgBr
A) Ion B) Molecule C) Atom D) Compound
A) Nitrogen and Helium B) Sodium and Oxygen C) Carbon and Hydrogen D) Iron and Sulfur
A) Alkene B) Alkyne C) Alkane D) Aromatic
A) Lipids B) Carbohydrates C) Proteins D) Vitamins
A) CarbohydrateS B) Proteins C) Lipids D) Esters
A) Carbohydrates B) Lipids C) Nucleic acids D) Proteins
A) C + O → CO₂ B) H + O → H₂O C) N + O → NO₂ D) Na + Cl → NaCl
A) Acid B) Alcohol C) Ester D) Ketone
A) Carbohydrate B) Nucleic acid C) Lipid D) Protein
A) The nucleus repels electrons. B) Electrons move in specific energy levels. C) Electrons are motionless. D) Atoms contain neutrons.
A) Niels Bohr’s B) Thomson’s C) Schrödinger’s D) Rutherford’s
A) Both are metallic B) Solid A is ionic, Solid B is covalent C) Both are covalent D) Solid A is covalent, Solid B is ionic
A) Polar covalent B) Nonpolar covalent C) Ionic D) Metallic
A) Ne (1s² 2s² 2p⁶) B) N (1s² 2s² 2p³) C) Li (1s² 2s¹) D) O (1s² 2s² 2p⁴)
A) O (1s²2s²2p⁴) and H (1s¹) B) C (1s²2s²2p²) and O (1s²2s²2p⁴) C) H (1s¹) and H (1s¹) D) Na (1s²2s²2p⁶3s¹) and Cl (1s²2s²2p⁶3s²3p⁵)
A) Group number equals the number of valence electrons for main group elements B) Group number equals the total number of electrons C) Group number equals number of shells D) No relation
A) Covalent B) Electrolytic C) Ionic D) Metallic
A) They are gases. B) They are inorganic. C) They are metals. D) They form carbohydrates, proteins, lipids, and nucleic acids
A) Carbohydrate B) Nucleic acid C) Protein D) Lipid
A) Lipids B) Proteins C) Sugars D) DNA or RNA
A) Athlete A – carbohydrates provide immediate energy. B) Athlete B – protein gives oxygen. C) Athlete B – protein builds muscle faster. D) Both are the same. |