Atoms and elements
in the nucleus, positive charge
protons, p+
a change that alters the form or appearance of matter but does not make a new substance
physical change
what group is titanium, silver, gold, iron, copper, nickel etc in?
Transition metals
alkaline metals are extremely reactive the react by losing how many electrons
one
energy is what
the ability to do work
in the nucleus, neutral
neutrons, n*
a change in matter that transforms it into one or more new substances
chemical change
what group is sodium, lithium, francium, etc in
alkaline metals
alkaline earth metals are still reactive how many electrons do they have to lose
two
high temperature equal to what atoms and molecules
fast moving atoms
outside of the nucleus, negative charge
electrons,e-
a characteristic of a substance that can be observed with out changing it into a new substance
physical change
what group is bromine, chlorine in
halogen group
lanthanide series is silvery metals easily burn in...
high oxygen
a summary of a chemical reaction using symbols and formulas instead of words
chemical equation
basic building blocks of all matter
atoms
a characteristic of a substance that describes its a ability or inability to change into new substance
chemical change
what is xenon, neon in
Noble gases
where or how or what makes actinide series
they are man made
beginning of a reaction
reactants
atoms of an element with different numbers or neutrons
isotopes
what are some clues to show chemical change (say all of them)
1.color change
2.chang in temperature
3.formation of gas
4.formation of a precipitate
what is americium in
actinide series
halogen group are ___ reactive and they gain and share how many electrons during chemical change
extremely, one
new substance after the reactants products
products