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Why does friction cause objects to be more negatively charged?
Normally, an atom contains electrons (-) (equal to that element's atomic number) orbiting the same number of protons (+). When you rub to different items together (one has to be able to give up an electron easily and the other receive the electrons easily, this will not work with all elements) the electrons from one item will travel to the other. The one giving up the electrons becomes positively charged (it now has more protons (+) then electrons (-)) and the one that receives the electrons becomes negatively charged (it now has more electrons (-) then protons (+)).
What happens after the reaction center receives energy from molecules in the light harvesting complex?
It passes the energy to the reaction center ( a specialized region of photosystem) then the energized electrons leave the reaction centers and are passed to adjacent electron transport chains (ETC)
Which subatomic particle determines reactivity?
Electrons, for chemical reactions
What are the electrons in the outer shell?
Those electrons are the valence electrons. They are the electrons which mostly take part in exchange of electrons or sharing of electrons. Hence, valence shell electrons are a very important part of chemistry since all the reactions due to them only.
The electrons that occupy the outermost filled shell are called?
Outer energy level electrons, or valence electron.
The electron transport chain receives electrons directly from?
NADH
Is bai2 ionic or covalent?
BaI2 is an ionic compound. This is because it consists of a metal that gives electrons, and a non-metal which receives electrons. There is no sharing of electrons and as such it cannot be a covalent compound.
Atoms can achieve a full octet of electrons by doing what?
By bonding with another atom, either ionically (donates/receives electrons) or covalently (electron sharing).
How electrons are jumping from one shell to other in the presence of forbidden zone of an atom?
may be electrons disappear from one shell when it receives it maximum energy and reappear at the other shell. or when the electrons receives it maximum energy it may convert into another form in band gap of an atom and again converted into its original form when it come it another shell which has fixed amount of energy...
What noble gas does oxygen want to be like?
Oxygen receives 2 electrons, so it has the electronic configuration like neon.
What is the series of special molecules in the mitochondria that receive the high energy electrons from the carriers called?
The electron transport chain is a series of special molecules in the mitochondrion that receives the high-energy electrons from the carriers.
What is the meaning of the word electrical?
an object which participates in a process which uses the movement of electrons (negatively charged particles) to transfer energy eg. a wire or plug or an object which receives its energy from the movement of electrons eg. a lightbulb
What can the build up of extra electrons on clouds cause?
Either covalent binding (sharing of electrons) with other atoms or ionic binding (taking of electrons from other atoms) with other atoms. When an atom receives an extra electron, it becomes negatively charged, when two atoms share electrons a strong bond derives.
Why is the formula ca F a logical one?
We would logically expect calcium and fluorine to combine, since calcium is strongly metallic (donates electrons) and fluorine is very strongly non-metallic (receives electrons). The actual formula is CaF2.
The chlorophyll known as P680 has its electron holes filled by electrons from what a. photosystem I. b. photosystem II c. water d. NADPH e. accessory pigments?
Oxidized P680 receives its electrons, from water oxidization. (2H2O --> O2 + 4H+ + 4e-).
How many protons in total are pumped into the intermembrane space of a mitochondria through the electron transport chain, if each complex individually receives 2 electrons?
12 protons
When a compound donates electrons the compound becomes what?
if a neutral atom donates an electron it will gain a positive charge. This is due to electrons having a negative charge.
