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