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