which of the m+2 or m+3 ions of the first row of transtional elements are stable in aqueous solutions, which are oxidizing and which are reducing ?

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

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since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;