Periodic Table & Chemical Properties Crossword Puzzle

QUESTIONS LIST:

• atomic number : the number of protons in each atom of an element
• ion charge : electrical charge that forms on an atom when it gains or loses electrons
• alkali metals : group 1 metallic elements (lithium, sodium, potassium, rubidium, cesium, francium)
• periodic table : organized list in which elements are arranged in rows and columns according to their atomic number and their patterns of similar properties
• atomic mass : the mass of an average atom of an element
• halogens : group 17 non-metallic elements (fluorine, chlorine, bromine, iodine, astatine)
• multiple ion charge : a characteristic of elements that can form an ion in more than one way, resulting in ions with different charges
• noble gases : group 18 elements (helium, neon, argon, krypton, xenon, radon)
• period : horizontal row in the periodic table
• metalloids : elements that share some properties with metals and some properties with non-metals
• alkaline earth metals : group 2 elements (beryllium, magnesium, calcium, strontium, barium, radium)
• ion : an electrically charged atom