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Indicate which categories apply to cesium. (Select all that apply.) a. metal b. nonmetal c....

Question:

Indicate which categories apply to cesium. (Select all that apply.)

a. metal

b. nonmetal

c. transition element

d. main group element

e. noble gas

Metals :

  • Metal is an element that has the capacity of donating electrons to form a positive ion (electropositive).
  • They are the good conductors of electricity

Example :

Cesium

{eq}Cs \to Cs^{+1}+e^{-} {/eq}

Answer and Explanation: 1

The atomic number of cesium is 55. This means that it consists of 55 electrons.

Let's see the electronic configuration of Cs :

{eq}[Xe]6s^1 {/eq}

The outermost orbital that is 6s is half-filled which means that it is not a noble gas element. It is the main group metal that belongs to group 1A that shows +1 charge by the loss of an electron from 6s orbitalnto achieve the stable electronic configuration of a noble gas. Transition metals show loss of 2 electrons and form a +2 charge.

Thus, the given element cesium is a metal belongs to the main group.


Learn more about this topic:

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Metals on the Periodic Table: Definition & Reactivity

from

Chapter 28 / Lesson 45
21K

What are metals? Learn the definition and different types of metals. See the reactivity and examples of metals present in the periodic table.


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