In the nucleus, all blueprints and instructs are stored there
Positive ions are formed when electrons are lost, for example, Potassium ion, K⁺ is formed when a Potassium atom, K losses one electron. A neutral atom of Potassium (K) has 19 protons and 19 electrons, and a positive ion of Potassium (K⁺) has 19 protons and 18 electrons.
Ions are charged particles formed when neutral atoms loss or gain electrons. When electrons are lost, positively charged particles called cations are formed, and when electrons are gained, negatively charged particles called anions are formed. Electropositive elements are more likely to form cations. Potassium (K) losses one electron in order to obtain a stable configuration, forming Potassium ion (K⁺).
For all neutral atoms, the number of protons is always equal to the number of electrons. The number of protons is the same as the atomic number. Potassium (K) has an atomic number of 19, thus it has 19 protons. Since Potassium (K) atom is a neutral atom, it will also have 19 electrons.
However, Potassium ion (K⁺) has lost one of its electrons, so it will have 18 electrons instead of 19. Therefore, Potassium (K) has 19 protons and 19 electrons, while Potassium ion (K⁺) has 19 protons and 18 electrons.
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The answer is <span> an endothermic reaction. </span>Photosynthesis is a type of endothermic reaction because it needs the energy from light (sun) to convert water and carbon dioxide into oxygen and glucose needed by other organisms.
The last one.) watson and crick
Gregory wants to make a hole in a flat piece of wood. He places object Y on the piece of wood, and then object X on top of it.(C) a screw and a wedge
Explanation:
Screw is used to drill a hole in the wood and the wedge is used to insert it properly.
The screw moves in a circular motion and thus creates a hole in the wood whereas a wedge is used to apply appropriate force on the screw .so that it can be placed properly in the wood.
The a screw and a wedge are termed as simple machines.Simple machines are those machines that we make use of to do day to day task at home.
So we can say that Gregory wants to make a hole in a flat piece of wood. He places object Y on the piece of wood, and then object X on top of it.(C) a screw and a wedge
