Ch. 2: periodic table Flashcards
group names, group charges, metals/nonmetals/metalloids, basic periodic table trends
group 1 is called ___?
alkali metals
group 2 is called __?
alkali earth metals
groups 3-12 are called ___?
transition metals
group 16 is called ___?
chalcogens
group 17 is called ___?
halogens
group 18 is called ___?
noble gases
charge of alkali metals?
1+
charge of alkali earth metals?
2+
charge of group 13/boron family?
3+
charge of T.M.s? what 3 elements are the exceptions? (name their charges)
charge of T.M.s varies, but always positive!
zinc (Zn), cadmium (Cd), and silver (Ag) are the exceptions, charges always the same when forming ionic compounds:
1. Zn has 2+ charge
2. Cd has 2+ charge
3. Ag has 1+ charge
charge of group 14/carbon family?
4+ or 4- depending on the compound it forms
charge of group 15/nitrogen family?
3-
charge of chalcogens?
2-
charge of halogens?
1-
charge of noble gases?
0
Fill in the blank: Elements in the same ___ have similar properties to each other
group
elements in which groups are referred to as Main Group Elements?
groups 1-2 and 13-18 (everything excluding transition metals, lanthanides, and actinides)
lanthanides and actinides are called ___
inner transition metals
most elements on the periodic table are ___
metals
all metals are ___ at room temperature. bonus: which element is the exception to this?
solid at room temp.
mercury (liquid at room temp)
typical state of matter for most nonmetals at room temperature?
most nonmetals are gases; some are solid or liquid at room temperature
T/F: most metals in solid form are brittle.
false: nonmetals in solid form are usually brittle and break easily
which class of elements is a good conductor of heat/electricity?
metals
the periodic table is written in order of increasing _____
increasing atomic number
