Answer & Explanation:
The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.
(2) a diatomic molecule
(3) a heterogeneous mixture
(4) a homogeneous mixture
Gold can be flattened into an extremely thin sheet. The malleability of gold is due to the
(1) radioactive decay mode of the isotope Au-198
(2) proton-to-neutron ratio in an atom of gold
(3) nature of the bonds between gold atoms
(4) reactivity of gold atoms
Your answer is: Galium
For n = 3, the possible orbitals are:
3s orbital: The 3s orbital is spherical in shape and can hold up to 2 electrons.
3p orbitals: The 3p orbitals have a dum/bb/ell shape and consist of three individual orbitals: 3px, 3p/y, and 3pz. Each of these orbitals can hold up to 2 electrons, so the total capacity of the 3p sublevel is 6 electrons.
3d orbitals: The 3d orbitals have complex shapes and consist of five individual orbitals: 3dxy, 3dxz, 3dyz, 3dx2-y2, and 3dz2. Each of these orbitals can also hold up to 2 electrons, resulting in a total capacity of 10 electrons for the 3d sublevel.
In summary, for n = 3, the possible orbitals are 3s, 3p (3px, 3py, 3pz), and 3d (3dxy, 3dxz, 3dyz, 3dx2-y2, 3dz2).
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Answer:The n = 3 shell, for example, contains three subshells: the 3s, 3p, and 3d orbitals. There is only one orbital in the n = 1 shell because there is only one way in which a sphere can be oriented in space.
Explanation:hope this helps:D
B)The nucleus is the dense center of the atom composed of electrons and neutrons. Surrounding the nucleus is an electron cloud composed of protons.
C)The electron cloud is the dense center of the atom composed of electrons. Surrounding the electron cloud is a nucleus composed of protons and neutrons.
Eliminate
D)The electron cloud is the dense center of the atom composed of protons and neutrons. Surrounding the electron cloud is a nucleus composed of electrons.
A is the correct answer I took this tes a few weeks ago.
An atom is structured into a central nucleus containing protons and neutrons, surrounded by an electron cloud that houses the electrons. This is similar to the solar system with the nucleus as the sun and the electrons as the planets revolving around it.
The structure of an atom is organized into two main parts: the nucleus and the electron cloud. The nucleus is the dense central part of the atom and is composed of protons and neutrons. Surrounding the nucleus, in various energy levels or orbits, is a space known as the electron cloud, which contains the electrons.
This structure can be related to the solar system where the nucleus represents the sun and the electrons depict the planets revolving around it. The correct statement that describes the structure of an atom, therefore is option A).
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