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