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