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