Answer: The electrons in an atom that take part in chemical bonding are the electrons in the outermost shell and they are called valence electrons.
Explanation: An atom is composed of three particles: protons, neutrons and electrons. The protons and neutrons occupy the centrally located nucleus while the electrons are located in the empty space outside the nucleus. Electrons are distributed around the nucleus in paths called electron shells. The electrons in the outermost electron shells are called the valence electrons. The valence electrons are the electrons that participate in chemical bonding. During chemical bonding, the valence electrons are either transferred from one atom to another or the valence electrons are shared between two atoms. A type of chemical bonding in which there is a complete transfer of valence electrons from an atom of a metal to an atom of a non-metal so that can attain octet or duplet structure of noble gases is called electrovalent or ionic bonding. A type of chemical bonding in which there is sharing of electrons between two atoms of non-metals so that both can attain the octet or duplet structure of noble gases is called covalent bonding.
Answer:
Function of Mitochondria. Just as a car runs on gasoline, your cells run on ATP. ... It's your heart muscle cells – with about 5,000 mitochondria per cell – that contain far more mitochondria than any other organ in body! That's because the constantly-beating heart works harder than any other organ in your body!
<u>Answer:</u>
Granitic rock in the ocean floor was not included in the support for Harry Hess's hypothesis of sea-floor spreading.
<u>Explanation:</u>
- Separation of the ocean floor which leads to the expansion of the ocean is called as sea-floor spreading.
- By this process there is formation of oceanic crust that are formed by volcanic activity along with the mid-oceanic ridge.
- Rock are basaltic and dense in nature. By this theory, it is suggested that the rock which are present near the mid-oceanic ridge are younger and the rock which are far from them are older than them.
- Plate tectonic movement is the cause for the sea-floor spreading.
It gives us a chance to study what it could possibly be inside or around the model<span />
Answer:
Gasoline, paint, radioactive waste, pesticides, mercury, lead oil, and battery acid.
Hope that was helpful.Thank you!
