atomic structure
No description yet. This curated deck is ready for daily study.
Card preview (10)
what is an element
One type of atom, on its own or joined to another atom of the same type.
what is an compound
Different types of atom joined by a chemical bond.
what is a mixture
elements or elements and compounds not joined together
what does it mean if the formula consists of 1 big letter and 1 little letter
its an element
what does it mean if a formula consists of 2 big letters
its 2 elements
what does each electron shell correspond to
an energy level
what do all elements in a group have in common
the same amount of electrons in outer shell
what do all elements within a period have in common
the number of shells
what is the reason for a pattern of reactivity going down the group
atoms get larger so distance between nucleus and outer shell increases, this means she shielding increases which means its easier to loose electrons and harder to gain them, this means there will be a pattern in reactivity as you move down the group