Select all that apply.

2 answers:

6 0

The answer is
They have the same number of electron shells
They transition from a metal to noble gas. Electron shells are also referred to as atomic orbitals. The number of electrons increase from left to right of the periodic table (until the orbital shell is filled and the atom becomes stable/noble) while the number of atomic orbitals increases from top to bottom of the periodic table.

svlad2 [7]3 years ago

6 0

Answer:

They have the same number of electron shells.

Explanation:

All elements in the same period have the same number of electron shells. The period to which any element belong automatically tell the number of shells the element is expected to possess. For instance, period 2 has Lithium, Beryllium, Boron, Carbon, etc as members and each possess only two shells.

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Identify the type of reaction represented by each equation. a: h2 cl2 â†’ 2hcl b: ch4 2o2 â†’ co2 2h2o equation a represents a r

EastWind [94]

The right response is combustion reaction and synthesis reaction.

A hydrocarbon reacting chemically with oxygen to produce carbon dioxide and water is known as a combustion reaction.

$hydrocarbon + O_{2}$ → $CO_{2} + H_{2}O$

The term "synthesis reaction" refers to the chemical process wherein elements combine to generate a single product.

$A + B$ → $AB$

Because hydrogen and chlorine combine to form the molecule of hydrochloric acid in their elemental states, this process is regarded as a synthesis reaction.

For A : $H_{2} + Cl_{2}$ → $2HCl$

Because hydrogen gas and chlorine gas are mixed in their elemental states to create the hydrochloric acid molecule, this process is regarded as a synthesis reaction.

For B: $CH_{4} + 2O_{2}$ → $CO_{2} + 2H_{2}O$