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