An atom's structure consists of a central nucleus and an outer cloud-like field that orbits the nucleus. Answer and Explanation: The correct option is D, protons and neutrons. The nucleus is a cluster of both positively-charged protons and uncharged...
The nucleus of an atom contains protons and neutrons. The nucleus carries a positive electrical charge. Electrons move around outside the nucleus. Electrons are organized into shells, which is a region where an electron is most likely found. Simple models show electrons orbiting the nuclear in a...
原子的中心,即原子核,包含了带正电荷的微粒,称为“质子”。The center, ___ nucleus, of an atom contains positively
Beginning in the 1890s, investigated the attenuation of electron beams passing through matter. This attenuation can have two causes: the electrons can lose their energy by exciting or ionising atoms, or they can be elastically scattered and so change their directions and leave the beam. produced...
Moseley understood atomic number to be the exact number of positive charges (later found by Ernest Rutherford to be protons) in the nucleus of an atom.Bohr’s model of atomic structure ~ 1913In 1913 Neils Bohr proposed the Bohr model of atom that incorporated the idea of quantum physics ...
Nuclear fission is the splitting of the nucleus of an atom. Only a few elements are suitable for use in this way, the most important ones being Uranium-235, Uranium-233, and Plutonium-239. When a nucleus of one of these elements is struck by a free neutron it breaks down into two lig...
The nucleus of an atom contains A) protons B) electrons C) neutrons D) protons and neutrons E) protons and electrons An atom has 15 protons and 15 neutrons. Which of the following is an isotope to this atom? a. An atom ...
最主要的是前面半句是contains over，所以后面的部分用occupies only显得更加平行，更加好因为是一个客观...
Glue the protons and neutrons together with the white glue. This represents the nucleus of the atom and should be more or less ball-shaped. It doesn't matter in which order you assemble the neutrons and protons. Step 6 Attach the electrons to the nucleus using the bamboo skewers from Step...
1 Which statement describes the structure of an atom?(3)(1) The nucleus contains positively charged electrons.(2) The nucleus contains negatively charged protons.(3) The nucleus has a positive charge and is surrounded by negatively charged electrons.(4) The nucleus has a negative charge and is...