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Mandarinka [93]
3 years ago
13

What is the relationship between two elements X and Y whose atomic number is 18 and 20 respectively, but their mass numbers rema

in same as 40?​
English
1 answer:
noname [10]3 years ago
6 0

Answer:

The elements are Isobars.

Explanation:

  • If two elements have different atomic numbers, but same atomic mass they are called isobars.
  • Here,X and Y have atomic number 18 and 20 ,but have the same atomic mass .So, they are clearly isobars.
  • They have differing atomic numbers because the no. of protons in each element is different.
  • But,they end up having the same atomic mass because they have enough neutrons to equate the sum total of nucleons between them.
  • Isobars are present in different regions of the periodic table.
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With the word "passed" in the given excerpt, the author Dickinson illustrates the old memories with gradual but continuous movement of time that has been passed.

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2 years ago
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3 years ago
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Where are examples of racism in the book cry, the beloved country
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Answer:

Segregated Services

The first incident of systemic racial divide that we see is when Kumalo takes a train from Ndosheni to Johannesburg. Since most of the white people have cars of their own, the trains are usually filled with black people. Still, the train is divided into sections for 'Europeans' and 'nonEuropeans.' The nonEuropean section is fairly crowded.

The same is true for facilities in the city. In Johannesburg, the gold mines build high buildings, beautiful houses, and a beautiful hospital for the Europeans. In the black communities, there is a hospital where one can find 'people lying on the floors. They lie so close you cannot step over them.'

Black men go to Alexandra, Sophiatown, or Orlando, because those are the places where black people are allowed to live, but when they get there, there is a six year waiting list for a house. In the meantime, multiple families are renting space in the same house or people build temporary houses out of whatever materials they can find. The conditions not only expose people to the elements, but are often unsanitary or lack privacy in ways that lead to sex and crime.

Divide and Conquer

At the Mission House, Kumalo meets with both black and white priests who serve the community to try to figure out what has happened to the black community in Johannesburg. The priests '…talked of criminals, of how white Johannesburg was afraid of black crime.'

Much of the blame goes to the white men. Basically, the white men need black workers to dig up the mines, but it is inconvenient for the white men to have to deal with the tribal unit. Instead, they tear up the farming land and pull black men together from various tribes to offer them labor jobs. Once they are separated from their families, the black youth lead 'loose and lazy lives.'

Kumalo's brother, John, recognizes the problem as being one of white power and privilege, which he blames on the church and the chief. He is happy to be in Johannesburg where '…I am free of the chief. At least I am free of an old and foolish man, who is nothing but a white man's dog. He is a trick, a trick to hold together something that the white man desires to hold together.'

After listening to John speak, Msimangu worries '…that is when white men and black men, desiring neither power nor money but desiring only the good of their country, come together to work for it. And I have one great fear in my heart, that one day when the white man has turned to loving, he will find we have turned to hating.'

6 0
3 years ago
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