picosecond

1 picogram = 10^-12 grams

nano

1 nanogram = 10^-9 g

micro

1 microgram = 10^-6 g

milli

1 milligram = 0.001 g

centi

1 centigram = 0.01 g

deci

1 decigram = 0.1 g

deka

1 deckagram = 10g

hecto

1 hectogram = 100g

mega

1 megagram = 10⁶ grams

giga

1 gigagram = 10⁹ grams

refers to how close to the true value a given measurement is

refers to how well a number of independent measurements agree with one another

NH₄⁺

[image][image]

[image][image]

Ammonium

HCO₃^-

[image]

Bicarbonate

CN^-

[image]

Cyanide

HSO₄^-

[image]

OH^-

[image]

NO₃^-

[image]

NO₂^-

[image]

ClO₄^-

[image]

MnO₄^-

[image]

CO₃^2-

[image]

CrO₄^2-

[image]

Cr₂O₇^2-

[image]

HPO₄^2-

[image]

SO₄^2-

[image]

SO₃^2-

[image]

S₂O₃^2-

[image]

PO₄^3-

[image]

Alpha particle

[image]

when a nucleus emits(decay) this particle, it loses 2 protons and so its atomic number decreases by 2.

when a nucleus emits (decay) this particle, its atomic mass decreases by 4.

Beta particle

[image]

when the nucleus emits this (decay)the atomic mass is unchanged

when the nucleus emits this (decay) the atomic number increases by 1.

the number of protons in the nucleus; defines the element

the number of protons plus the number of neutrons in an atom

atoms of the same element with different numbers of neutrons and therefore different masses