According to the electronic configuration, the element with 8 electrons in its 3 d sublevel is nickel.
Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
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The element with 8 electrons in its 3d sublevel is Ni, Nickel. The answer is letter D. The rest of the choices do not answer the question above.
Joseph Proust
Ernest Rutherford
J. J. Thomson
Answer:
J.J. Thomson
Explanation:
Answer:
D
Explanation:
took the test
B. The number of electrons ranges from 1 to 3.
C. The number of neutrons ranges from 0 to 2.
D. The number of protons ranges from 0 to 2.
The correct answer is C.
A substance is said to exhibit isotopy if the number of proton and neutron in the nucleus of the atom differs, whille the number of proton and electron are the same. Hydrogen has three isotopes and each of the isotopes has different number of neutron. Hydrogen 1 has no neutron but have 1 proton, hydrogen 2 has 1 neutron and 1 proton and hydrogen 3 has 1 proton and 2 neutrons.
(2) a solution (4) an isomer
A sample composed only of atoms having the same atomic number is classified as " element".
A pure substance made up entirely of atoms with almost the same number of protons in respective nuclei was known as an element.
Atoms are "the fundamental building components of matter," according to Wikipedia. It is the lowest fundamental unit of matter which thus possesses chemical element qualities.
A sample composed only of atoms having the same atomic number is classified as " element".
Therefore, the correct answer will be option (3).
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