Question

g Suppose you read in the newspaper that a chemist in South America claims to have discovered a new element with an atomic number of 34. An extremely rare element, it was found in a sample recovered from the Andes Mountains. Unfortunately, he has used up all of the sample in his analysis

Answer 1

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Step-by-step explanation:

ANDRES MOUNTAINS are found along the western edge of South America and they are the highest mountain range outside Asia.

The ELEMENT with an ATOMIC NUMBER of 34 IS SELENIUM which is considered a metalloid(that is, it possesses properties that are intermediate between the elements above and below in the periodic table.

The element has the electronic configuration of; [Ar] 3d104s24p4, Electrons per shell; 2,8,18,6 and Electronegativity: 2.55. Selenium exists in the oxidation states of −2, +4, and +6.

IF THE CHEMIST HAS USED UP THE ELEMENT, HE CAN PREPARE IT BY;

(1). Obtaining a pure Selenium from slimes and sludges formed in producing H2SO4 ..

(2). Through electrolytic purification of metals.

(3). Selenium can be obtained from a ton of smelted copper.

IMPORTANCE OF THE ELEMENT: it's photoconductivity and electrical resistivity.