Question

one - pager graphic organizer: reactivity and the periodic table. use this one - pager to organize what you have learned about reactivity, valence electrons, and periodic table trends. fill in each section with your notes, diagrams, and explanations. box 1: definitions. reactivity: valence electrons: group: period: box 2: metals reactivity trend. draw an arrow showing: most reactive → least reactive

Explanation:

Reactivity refers to how readily an element undergoes a chemical reaction. Valence electrons are the electrons in the outermost shell of an atom that participate in chemical bonding. In the periodic table, for metals, reactivity generally increases down a group and decreases across a period. Groups are the vertical columns and periods are the horizontal rows.

Answer:

Box 1 - Definitions:

• Reactivity: The tendency of an element to undergo a chemical reaction.
• Valence Electrons: Electrons in the outermost shell of an atom involved in bonding.
• Group: A vertical column in the periodic table.
• Period: A horizontal row in the periodic table.

Box 2 - Metals Reactivity Trend:

• In general, for metals, reactivity increases as you go down a group (due to larger atomic size and easier loss of valence electrons) and decreases as you move from left - to - right across a period (as the effective nuclear charge increases and it becomes harder to lose electrons). To draw the arrow: Point the arrow downwards within a group to show increasing reactivity and from right to left across a period to show increasing reactivity for metals.