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3 years ago

1. Al+3 has how many neutrons?2. thorium-230 has how many protons, neutrons and electrons?

Chemistry

1 answer:

Usimov [2.4K]3 years ago

8 0

The mass number of aluminium is 26 and the atomic number of aluminium is 13.

The number of neutrons is given by the difference between the mass number and number of protons.

number of neutrons = mass number - number of protons

Number of protons = 13

Mass number of Aluminium = 26

Therefore number of neutrons = 26-13 = 13.

The atomic number of thorium is 90 and the mass number of thorium is 230 as given in the question

atomic number = number of electrons = number of protons

Therefore the number of electrons in thorium 230 = 90

Number of protons in thorium 230 = 90

Number of neutrons = Mass number - number of protons = 230-90 = 140

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3 years ago

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3 years ago

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The reagents for BaCO₃ is

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Explanation

Reagent is a substance that bring about a chemical reaction when added to a system.

Some reagent may be added to see if a reaction has occurred.

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3 years ago