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