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