Chem

What are the three laws of the modern atomic theory

Tags

NGSS.HS-PS1-7

mass cannot be created in a chemical reaction

• law of definite proportions

• law of conservation mass

• law of multiple proportions

Tags

NGSS.HS-PS1-7

different compounds can be created by the same elements

• law of definite proportions

• law of conservation mass

• law of multiple proportions

the compound carbon dioxide is 72.71% oxygen

• law of definite proportions

• law of conservation mass

• law of multiple proportions

when silver reacts with copper (ll) chloride, 57g silver before the reaction will result in 57g after the reaction

• law of definite proportions

• law of conservation mass

• law of multiple proportions

Tags

NGSS.HS-PS1-7

water contains a ratio of hydrogen to oxygen at 2:1, whereas hydrogen peroxide contains a ratio of hydrogen to oxygen at 1:1

• laws of definite proportions

• laws of conservation mass

• law of multiple proportions

every sample of silver nitrate will contain one silver ion bonded to one nitrate ion

• law of definite proportions

• law of conservation mass

• law of multiple proportions

Which of Dalton's laws are no longer true?

• • All matter is composed of extremely small particles called atoms.

• Atoms of a given element are identical in size, mass, and other properties

• • Atoms cannot be subdivided, created, or destroyed.

• • Atoms of different elements can combine in simple whole number ratios to form chemical compounds.

• • In chemical reactions, atoms are combined, separated, or rearranged.

Tags

NGSS.HS-PS1-7

First to discover the proton/nucleus

• Rutherford

• Chadwick/Currie

• Dalton

• Thomson

First to discover the neutron

• Bohr

• Democritus

• Chadwick/ Currie

• Thomson