Chemistry, 05.02.2021 18:20 brinleychristofferse

Emission Spectrum Questions for Quiz Print - Quizizz 13. if X is the symbol for an element, which of the following two symbols represent isotopes of
the same element? 1.7735X 11.7733X III. 8137X IV. 8135 X
b) III and IV
a) I and II
d) I and III
C) I and IV

Emission Spectrum Questions for Quiz Print - Quizizz

13. if X is the symbol for an element, which

Answers: 2

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Answer from: asdf2342

The species I and IV have the same atomic number, and different mass numbers. Thus I and IV are isotopes. Option D is correct.

Elements have been present in nature in varying isotopes. Isotopes can be defined as the element with the same atomic number and different mass numbers.

In representing the element with its symbol, the number represented at the superscript before the symbol is the mass number. The number that has been represented at the subscript before the number is the atomic number.

In the given elements:

I: $\rm ^7^7_3_5X$ : Atomic number = 35

Mass number: 77

II. $\rm ^7^7_3_3X$ : Atomic number = 33

Mass number: 77

III. $\rm ^8^1_3_7X$ : Atomic number = 37

Mass number: 81

IV. $\rm ^8^1_3_5X$ : Atomic number = 35

Mass number: 81

The species I and IV have the same atomic number, and different mass numbers. Thus I and IV are isotopes. Option D is correct.

For more information about the isotopes, refer to the link:

link

Answer from: josephvaldez518

Isotopes of the same element

₃₅⁷⁷X and ₃₅⁸¹X

Further explanation

Given

Isotopes of element

Required

Isotopes of the same element

Solution

The elements in nature have several types of isotopes

Isotopes are elements that have the same Atomic Number (Proton) and different mass numbers

Element symbols that meet the 2 conditions above are :

₃₅⁷⁷X and ₃₅⁸¹X

Answer from: Quest

you gotta add the following molecules so we can give u an answer

explanation:

Answer from: Quest

You would be correct, boiling water does disinfect contamination. the property of disinfecting means to kill germs, bacteria and other pathogens or contamination that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate. the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

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