The first eighteen chemical elements on the periodic table are described below in a series of statements. The first 1S letters of the alphabet (A-R) have been arbitrarily assigned to replace the standard chemical symbols for these elements.

From the information given below, determine the proper location of the "mystery" elements.

1) The following elements belong together in groups: BF, EQ, PR, DC, J0, NK, G& HIM
2) Element D has four valence electrons.
3) Element E has the greatest electronegativity in its period.
4) Element B has fairly low first and second ionization energies and a lower boiling point than the other member of its group.
5) Concerning chemical reactivity in one period, the following are in increasing order: MFL
6) Element A really doesn't have a family to call its own and is a diatomic gas at room
7) Element I will not combine with P or Q
8) Element G is larger than M
9) The compound that forms between R and K ions has the formula R2K3.
10) Element R is more metallic than its family partner
11) At room temperature, Element O is a diatomic gas, while J is a nonmetallic solid.
12) Element Qis heavier than M, but slightly larger than MM
13) When Element C loses its valence electrons, it has the same electron structure as neutral H
14) Element I has the highest nuclear charge of the elements listed.
15) N's first ionization energy is greater than K's

Respuesta :

Answer: The questions looks unclear

Explanation: Periodic table is a table that contains elements arranged according to their increasing atomic number.

1. D belongs to group 4

E. Belongs to group 7

B belongs to group 1

A belongs to group 8. A noble gas.

R belongs to group 3. K belongs to group 6 C belongs to group 1. H belongs to group 8

The periodic table has been the arrangement of the elements in the increasing order of atomic number across group, and increasing order of atomic shell in period.

From the given description of the elements in the periodic table, the elements can be determined as:

The element D has 4 valence electrons, thus it has been present in group 4 of the periodic table.

The element E has the highest electronegativity, thus it has been a halogen of group 8.

The ionization energy decreases down the group, thus element B has been present in period 2 or period 1.

The chemical reactivity  decreases across the period. Thus, the arrangement of M, F, and L has been in the increasing order.

The arranged periodic table has been attached in the image below.

For more information about periodic table, refer to the link:

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