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