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