Draw the electron configuration for a neutral atom of zinc.

The atomic number of zinc is 30, which means that all zinc atoms have 30 protons in their nuclei. A neutral atom has equal numbers of protons and electrons, so a neutral atom of zinc would have 30 electrons.

The electron configuration of a neutral zinc atom is #"1s"^2"2s"^2"2p"^6"3s"^2"3p"^6"3d"^10"4s"^2"#.

The #"Zn"^(2+)# ion has lost two electrons, which leaves it with 30 protons and 28 electrons. The electron configuration of #"Zn"^(2+)"# is #"1s"^2"2s"^2"2p"^6"3s"^2"3p"^6"3d"^10"#.

Zinc is a d-block element, also known as a transition element. For the d-block elements, the outermost s-sublevel has higher energy than the d-sublevel, which is contrary to what the Aufbau diagram indicates.

When d-block elements lose electrons, they lose the highest energy s electrons first, which in the case of zinc are the two 4s electrons. Having eight 3d electrons and two 4s electrons is much less energetically stable than ten 3d electrons and no 4s electrons.

http://chemguide.co.uk/atoms/properties/ionstruct.html
http://chemguide.co.uk/atoms/properties/3d4sproblem.html#top

Classification and Properties of Matter

In chemistry and physics, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, "matter" generally includes atoms and anything made up of them, and any particles and objects that act as if they have both rest mass and volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or sound. Matter exists in various states (known as phases) that are defined by various physical properties, such as state of matter, phase, shape, and density. The Standard Model of particle physics and the general theory of relativity describe fundamental particles and the fundamental forces acting between them that control the structure and dynamics of matter.

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Solution

Zinc:Zinc is a d-block element having an atomic number 30.The chemical symbol of Zinc is 'Zn'.Electronic configuration of d-blockIn general, the electronic configuration of these elements is (n-1)d1-10 ns1-2.Here, (n–1) stands for the inner dorbitals which may have one to ten electrons, and the outermost ns orbital may have one or two electrons.Electronic configuration of Zinc Zn:The electronic configuration of Zinc in the ground state is 1s22s22p63s23p63d104s2.It can be represented as: [Ar]3d104s2

What is the electron configuration for a neutral atom of zinc?

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