Ionic Bonding Flashcards
What happens when a metal atom reacts with a non-metal atom?
Electrons in the outer shell of the metal atom are transferred.
What do metal atoms become when they lose electrons?
Positively charged ions.
What do non-metal atoms become when they gain electrons?
Negatively charged ions.
What is the electronic structure of ions from metals in Groups 1 and 2 and non-metals in Groups 6 and 7?
Similar to noble gases (Group 0).
How can the electron transfer in the formation of an ionic compound be represented?
By a dot and cross diagram.
Provide an example of a dot and cross diagram for an ionic compound.
Na • + (2,8,1) (2,8,7) and Cl • - (2,8) (2,8,8).
What should students be able to draw dot and cross diagrams for?
lonic compounds formed by metals in Groups 1 and 2 with nonmetals in Groups 6 and 7.
How does the charge on ions relate to the group number in the periodic table?
It relates to the group number of the element.
From which groups can students work out the charge on ions based on the group number?
Metals in Groups 1 and 2, and non-metals in Groups 6 and 7.
