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Chemistry

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Liam Brakus

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Cards in this guide (13)
How many protons does an atom of carbon have

6

Atoms with certain characteristics are radioactive Which is least likely to be radioactive

all atoms with an atomic number under 40

Which is not true of beta radiation

It is the heaviest of the three types.

The strong nuclear force acts over a smaller distance than the electrostatic force

true

Lead-210 and lead-206 are different of lead

Lead-210 and lead-206 are different isotopes of lead.

Plutonium-196 has an atomic number of 78 It has neutrons

118

What is the missing number in the nuclear reaction shown below 237 93 Np - 4 2 He plus 233 Pa

91

The half life of cobalt 60 is 5.3 years After years 14 of the original amount of cobalt 60 will remain

10.6 years

A substance is the time required for half the atoms in a sample of a radioactive isotope to decay

The time it takes for half the sample to decay is called the half-life.

The time it takes for half the sample to decay is called the half-life.

The time it takes for half the sample to decay is called the half-life.

The time it takes for half the sample to decay is called the half-life.

In the following decay equation 90 39 y is the

daughter element

Factor 2p plus 11p plus 5

2p + 11p + 5 = 13p + 5 which does not factor.

If the expression had been 2p2 + 11p + 5 then this can be factored,

2p2 + 11p + 5 = (2p + 1)(p + 5)

What is missing in the following nuclear equation

99 43 tc + 99 44 ru

I’m a nuclear reaction which of the following must be conserved

Charge

The count of nucleons

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