The correct text in the sentence will be: Within the nucleus of an atom, each proton and neutron has approximately the same mass.
The guideline in standard English is that single and plural forms of words should always be matched with subjects, verbs, quantity words, and the nouns they modify.
A verb and its subject must be in the same number and person. (a) Most English verbs end in -s or -es when the subject is third person singular, but there is no -s or -es on third person plural. He attends classes. They attend classes.
The incorrect verb is "have". It should be "has" to agree with the singular subject "each proton and neutron". The corrected sentence is: "Within the nucleus of an atom, each proton and neutron has approximately the same mass."
Learn more about Subject-verb agreement here:
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Answer: Within the nucleus of an atom, each proton and neutron approximately have the same mass.
NO UNHELPFUL QUESTIONS OR U ARE REPORTED
The above question requires personal answers that represent your life. For that reason, I cannot write an answer for you, but I will explain how to write it.
First, you should think about the lessons you have learned in your life and what causes these lessons to come about. In relation to these causes, you should identify:
After identifying these elements, you can write a paragraph for each of them. This paragraph should have descriptive language, where you will explain how each element formed the lessons you learned and how valuable these lessons were to you.
More information about descriptive language at the link:
The sentence which uses possessive personal pronouns correctly is B.
These are the correct ways the other sentences should written.
A. Ewan wondered if the keys were his. (there is no need for that apostrophe)
C. The dog scratched its fur over and over. (The way it is written is it's which is a contraction for it is.) It wouldn't sound right if you said the dog scratched it is fur.
D. Theirs are the two on the side, by the counter. (There is no need for that apostrophe)
B. Have you seen the movie and its sequels? (the possessive pronoun its it correct because if it was it's then the sentence would read as follows. Have you seen the movie and it is sequels.)
Hope this helps. :)
He helps save those who think his extreme carefulness is foolish.
B.
He gets his revenge on those who think his extreme carefulness is foolish.
C.
He does not care that others think his extreme carefulness is foolish.
D.
He does not know that others think his extreme carefulness is foolish.
it is true ok have a good day