chemistry asvab study

what is in the nucleus

protons and neutrons

protons-

positive charge; mass is 1 amu

neutrons-

no charge; mass is 1 amu

electrons

negative charge; minor mass

atomic number-

number of proteins

mass number-

protons + neutrons

neutral atoms-

number of protons = number of electrons

periods (rows) are the number of ____ shells

electron

groups (columns) have

similar properties

metals are on the ___ side

left

metalliods are between

metals/nonmetals

group 1

Alkali metals; very reactive

group 2

alkaline earth metals

group 17

halogens; very reactive nonmetals

group 18

noble gases; unreactive

Al

Aluminum

Fe

Iron

Mg

magnesium

K

Postassium

Cu

copper

Au

gold

Ag

silver

ionic bonds- transfer of…

electrons; metal + nonmetal

what is an example of an ionic bond

NaCl (salt)

covalent bonds- sharing of

electrons; nonmetal + nonmetal

example of covalent bond

H2O

metallic bonds- "sea“ of

electrons; metal + metal

example of metallic bonds

Cu (copper)

synthesis equation:

A + B → AB

example of synthesis: 2Na + Cl2 →

2NaCl