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