Periodic Table and Density

Periodic Table

100

the name for the horizontal rows

period

200

the name for the vertical columns

group

300

the group at the far right of the periodic table that does not readily combine/react with other elements

noble gases

400

how the periodic table is arranged

atomic number

500

creator of the periodic table

Dmitri Mendeleev

Metals, Nonmetals, Metalloids

100

term that means a substance can be hammered into sheets

malleable

200

term that means a substance can be pulled into a wire

ductile

300

both malleable and ductile

metals

400

some traits of metals and some traits of nonmetals

metalloids

500

brittle and non-reflective

nonmetals

MIENCE

100

Atomic Number = 4                                             Mass Number = 9                                            Number of protons = ?

4

200

atomic number = 4                                             mass number = 9                                            number of neutrons = ?

5

300

mass of unknown object = 20 g                         volume of unknown object = 5 cm³                  Calculate density

4 g/cm³

400

initial volume = 15 mL  ending volume = 18 mL           What is the volume of the object?

3 mL

500

atomic number = 40 mass number = 90  How many electrons?

40

Density

100

mass divided by volume

density

200

measuring the volume of an object by immersing it in a known volume of a liquid

displacement

300

measure of matter in an object

mass

400

amount of space an object occupies

volume

500

amount of matter packed into a specific volume

density

Atoms

100

found in the nucleus

protons and neutrons

200

found orbiting the nucleus

electrons

300

positive charge

proton

400

negative charge

electron

500

no charge or neutral

neutron