Will gladly give brainiest for this easy question how many protons are in an atom of copper? how many electrons are in an atom of copper? how many neutrons are in an atom of copper? round your answer to the nearest whole number.

The atomic number of Copper is 29.  So immediately we know that there are 29 protons in the nucleus of each Copper atom, and 29 electrons in the cloud surrounding the nucleus of each [neutral] Copper atom.

Copper has two stable isotopes ... ⁶³Copper and ⁶⁵Copper.  So if the Copper atom you're holding in your hand is not radioactive, then it has either (63-29)=34 neutrons or (65-29)=36 neutrons in its nucleus. (There's never a need to round the number of neutrons, because there's no such thing as a part of a neutron.)

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

i believe the answer is a hope it and is correct