A) 60 B) 51 C) 23 D) 50
A) 7 B) 1 C) 3 D) 17
A) 9 B) 103 C) 5 D) 45
A) 3 B) 4 C) 15 D) 33
A) Alkali Metals B) Alkaline Earth Metals C) Transition Metals D) Halogens E) Noble Gases
A) 2 B) 14 C) 7 D) 14.007
A) 2 B) 6 C) 137 D) 56
A) 7 B) 2 C) 1 D) 6
A) Chlorine is a liquid non-metal. B) Mercury is a solid metal. C) Phosphorus is a non-metal gas. D) Tellurium is a solid metalloid.
A) 5 B) 42 C) 6 D) 96
A) 7 B) 2 C) 4 D) 3
A) proton/+, electron/-, neutron/uncharged B) proton/+, electron/neutral, neutron/- C) proton/+, neutron/-, electron/no charge D) proton/-, electron/+, neutron/no charge
A) neutrons and electrons B) protons and neutrons C) protons and electrons D) protons and orbits
A) Mercury and Thallium B) Carbon and Boron C) Phosphorus and Silicon D) Argon and Krypton
A) electrons orbit totally randomly around the nucleus B) atoms are tiny solid spheres C) the atom is mostly empty space D) the atom is a positively charged sphere with electrons embedded in it
A) group B) nucleus C) period D) region
A) Magnesium B) Chlorine C) Beryllium D) Lithium
A) number of neutrons B) number of protons C) group number D) period number
A) greater than the mass number B) the same as the number of energy levels C) the mass number minus the atomic number D) the same as the number of electrons
A) Number of Neutrons B) State of Matter C) Period Number D) Group Number
A) Carbon B) Francium C) Manganese D) Nitrogen
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
A) by losing protons B) By adding or losing electrons C) by adding electrons D) by adding protons
A) by adding electrons B) by losing protons C) by adding protons D) by losing electrons
A) by adding electrons B) by losing electrons C) by adding protons D) by losing protons
A) by adding or losing neutrons B) by adding protons C) by adding electrons D) by adding neutrons
A) same as the atomic number B) difference between the atomic and mass number C) mass number divided by 2 D) same as the mass number
A) the same as the mass number B) the same as the number of neutrons C) the same as the atomic number D) the difference between the mass and atomic number
A) Na and Li B) Hg and C C) B and O D) Mg and F
A) F and At B) Mg and Cl C) Ba and Ra D) Li and Po
A) The halogens B) The noble gases C) The alkali earth metals D) The alkali metals E) The transition metals
A) The noble gases B) The halogens C) The alkali metals D) The transition metals
A) 17 B) 18 C) 1 D) 8 E) 4
A) how many electron levels there are B) how reactive they are C) how many electrons there are D) how many protons there are
A) how many valence electrons the atom has B) how many electrons the atom has C) the number of neutrons D) the number of protons
A) Sodium B) Mercury C) Silver D) Fluorine E) Iron
A) F B) H C) Al D) Au E) Li
A) Li B) Cs C) Mg D) Al E) I
A) the number of neutrons B) the number of protons C) the number of electrons
A) Lewis B) Newton C) Mendeleev D) Dalton E) Bohr |