U-232
u-235
u-236
u-238
these nuclei all have a different number of
question 2 options:
electrons
neutrons
protons
nucli

Neutrons

Explanation:

All the elements are isotopes of each other. The only difference is in the value of neutrons. Change in electron does not affect the mass number of atom. If there's a change in the proton number, it cease to exists as that same atom rather corresponding to the respective element with that number of proton. The number of proton in an element is usually referred to as the atomic number since it identifies with that particular element.

²³²U, ²³⁵U, ²³⁶U, ²³⁸U all have the same number of proton (atomic number) but different number of neutrons. Combination of proton sand neutrons give atomic mass of an element and which is the number attached to the atomic letter (U).

tbh i dont know ether

-first use of geothermal energy occurred more than 10,000 years ago in north america by american paleo-indians

-the first industrial use of geothermal energy began near pisa, italy in late 18th century

-in 1904, italian scientist piero ginori conti invented the first geothermal electric power plant in which steam was used to generate the power

-with the above experiment, the first geothermal plant in usa started in 1922 with a capacity of 250 kilowatts

-however, in 1946 first ground-source geothermal heat pump installed at commonwealth building in portland, oregon

-during the 1960’s, pacific gas and electric began operation of first large scale geothermal power plant in san francisco, producing 11 megawatts

-in 1973, when oil crisis began many countries began looking for renewable energy sources and by 1980’s geothermal heat pumps (ghp) started gaining popularity in order to reduce heating and cooling costs

-as effect of climate change started showing results, governments of various countries joined hands to fight against it, for which kyoto protocol was signed in japan in 1997, laid out emission targets for rich countries and required that they transfer funds and technology to developing countries, 184 countries have ratified it

hope this