periodic table Flashcards
(41 cards)
Names for groups of elements in Group 1, 2, 17, 18
Alkali metals
The halogen of the second period
Fluorine
The alkaline earth metal in the fifth period
Stronium
The noble gas with the smallest atomic number
Helium
The non-metal of the fifth period with seven outer most electrons
Iodine
The alkali metal of the fourth period
Potassium
The metal of the third period with three outermost electrons
Aluminum
The unreactive gas of the second period
Neon
What are the clues of a chemical change ?
A new colour appears, heat is produced, light is absorbed, bubbles of gas are formed, a solid material forms in the liquid (precipitate), the change is difficult to reverse
Element 1
Hydrogen, +1
Element 2
Helium, none
Element 3
Lithium, 1+
Element 4
Beryllium, 2+
Element 5
Boron, 3+
Element 6
Carbon, 4+
Element 7
Nitrogen, 3-
Element 8
Oxygen, 2-
Element 9
Fluorine, 1-
Element 10
Neon, none
Element 11
Sodium, 1+
Element 12
Magnesium, 2+
Element 13
Aluminum, 3+
Element 14
Silicon, 4+
Element 15
Phosphorus, 3-
