Elements Crossword Puzzle

QUESTIONS LIST: lewis: a diagram showing only the outer valence electrons of an element, positive: when an element loses electrons it has this charge, gold: this soft metal is highly prized, rubidium: element with 37 electrons and 48 neutrons, ionic: these compounds form between metals and non-metals, copper: this metal is a great conductor for electricity, hydrogen: element with smallest mass, nitrogen: a gas found in air, mercury: this metal is a liquid at room temperature, atomic mass: nickel has an _ _ of 59 (2 words), argon: element with 18 protons and 22 neutrons, scandium: element with 21 protons and 24 neutrons, nickel: element with 28 electrons and 31 neutrons, atomic number: oxygen has an _ _ of 8 (2 words), anion: an ion with a negative charge, aluminum: this soft, light metal is a silver colour, attract: opposite charges _ , noble: he, ne, kr, ar, xe, rn are all _ gases, cation: an ion with a positive charge, flouride: an ion of flourine, bromide: an ion of bromine, negative: when an element gains electrons it has this charge.