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Stolb23 [73]
2 years ago
14

Which of the following is not a vector

Physics
2 answers:
kaheart [24]2 years ago
7 0
The answer is b length
Komok [63]2 years ago
4 0
Length is not a vector because you only need to state a unit (etc. meters, centimetres, or feet) and not a direction
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Answer:

Nucleus A with 7 protons and 7 neutrons and Nucleus C with 7 protons and 5 neutrons are isotopes of the same elements

Explanation:

Isotopes are elements that have the same atomic structure but different molecular structure. An atom that has the same atomic number but different mass number are known to be isotopes.

The proton of an atom is the same as its atomic number while the sum of the proton and neutron is equal to its mass number.

According to the question, nuclei that has the same number of proton are isotopes of the same element. Therefore nuclei A and C with 7 protons each are isotopes of the same element since they have the same atomic number i.e number of proton = atomic number.

Their atomic masses of nuclei A and C are 14 and 12 respectively

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Which are the simplest pure substances that cannot be broken down into any other substances
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Give reasons.<br>A stone thrown upward returns back to the earth surface.​
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