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Chemistry

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Elian Collins

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Cards in this guide (9)
Were JJ Thomson's ideas accepted by society at the time

yes jj thomsons ideas or beliefs were accpeted

Which graph best represents a change of phase from a gas to a solid

A graph going down from GAS to SOLID best represents a change in phase from a gas to a solid.

How can you find the number of neutrons that are in the nucleus of an atom

Aluminum is 13 because that is the atomic number (the number of protons). The atomic mass number is the number of protons and neutrons in an atom. In this, you just subtract the number of protons from the mass number. If Aluminum (Al), #13, has a mass number of 27, then it has 14 neutrons. Pretty simple.

What is the force on the Moon's surface compared to the force of gravity on earths surface

The moon's gravity is about 1/6th of the earth's.

What was the atomic theory about

the structure of the atom

What elements have the highest and lowest ionization energy

Helium has the highest first ionization energy and francium has the lowest first ionization energy.

What period is Pb in

How have chemists used the periodic table over time

Which of the following has kinetic energy

Anything that has a nonzero mass and a nonzero speed.

Which of the following is the best definition of matter

Anything that has mass.

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