What makes up most of the volume of an atom? How does an ion differ from an atom? What are the masses of the subatomic particles? What is the mass number for silicon? What substance is made up of one type of atom only? How many atoms of cobalt equal a mass of ...
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The nucleus of an atom: Each atom has a nucleus at approximately the centre of its volume consisting of the two types of particles called protons and neutrons. Protons and neutrons are known collectively as nucleons. Neutrons have no charge and protons have a charge of +1 (that is, they ...
aand he is a lazy boy.He has to go to school , but he is bored there and daes littlr work. His father and mother are both doctors and they hope that he will also become one when he grows up. But one day john says to his mother"When I finish school, I want to be a garbage...
(like ear pads and large housings), noise-canceling headphones use what is called active noise control to lower the outside volume. this noise cancellation effect makes it possible to clearly listen to music or audio in a noisy environment without having to turn up the volume. noise-canceling...
Even the atom isn't small enough to explain the workings of electricity. We need to dive down one more level and look in on the building blocks of atoms: protons, neutrons, and electrons. Building Blocks of Atoms An atom is built with a combination of three distinct particles: electrons,...
Leaves and bark, xylem and phloem, and cambium. What are those made of? Cells, molecules,carbonatoms. But what's an atom made of? Whatismatter, really? Matter is defined as that which 1) has mass and 2) has volume or takes up space. Mass is an intrinsic property whose base SI unit...
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Most of an atom is empty space. If an atom were about as big as a baseball stadium, the nucleus would be the size of a pea in the very center and the electrons would be somewhere on the outside edge.What makes an atom of gold different from an atom of iron is the number of ...
have yet to learn much about them.Life in the oceans ranges from the tinest plankton allthe way up to giants like sharks and whales.What makes the ocean such a great place to live?The answer is water.CHEWICAL STRUCTREThe chemical structure of water makes it an exc...