An element with atomic number will form a basic oxide________a)7b)17c)...
Sodium forms a basic oxide because it is a metal. Metals generally form basic oxides because they tend to donate electrons to oxygen atoms. In the case of sodium, when it reacts with oxygen, it forms sodium oxide, in which each sodium atom donates one electron to oxygen. This results in the formation of sodium ions (Na+) and oxide ions (O2-), which can combine to form the ionic compound sodium oxide. Sodium oxide is basic because it can react with water to form a solution of sodium hydroxide, a strong base.
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An element with atomic number will form a basic oxide________a)7b)17c)...
Basic Oxide Formation based on Atomic Number
Basic Oxides are oxides that react with acids to form salts and water. They are usually formed by metals and have a high pH. The basicity of the oxide is dependent on the nature of the metal.
The atomic number of an element indicates the number of protons in its nucleus. It is also the number of electrons in the neutral atom. The electronic configuration of an element determines its chemical properties. The number of valence electrons in an element determines its reactivity.
Now, let's see why the correct answer is option 'D':
- Atomic number 7: Nitrogen (N)
Nitrogen is a non-metal and forms acidic oxides like nitrogen dioxide (NO2) and nitrogen trioxide (NO3). Hence, option 'A' is incorrect.
- Atomic number 17: Chlorine (Cl)
Chlorine is a non-metal and forms acidic oxides like chlorine dioxide (ClO2) and chlorine trioxide (ClO3). Hence, option 'B' is incorrect.
- Atomic number 14: Silicon (Si)
Silicon is a metalloid and forms amphoteric oxides like silicon dioxide (SiO2). Amphoteric oxides can react with both acids and bases. They do not have a fixed pH. Hence, option 'C' is incorrect.
- Atomic number 11: Sodium (Na)
Sodium is a metal and forms basic oxides like sodium oxide (Na2O) and sodium peroxide (Na2O2). Basic oxides are formed by metals and have a high pH. Hence, option 'D' is correct.
Conclusion:
The correct answer is option 'D' because sodium (Na) with atomic number 11 is a metal and forms basic oxides. Other elements mentioned in the options do not form basic oxides.
An element with atomic number will form a basic oxide________a)7b)17c)...
Atomic Number and Basic Oxides
The atomic number of an element is the number of protons in the nucleus of its atom. This number determines the chemical properties of the element, including its ability to form different types of compounds. One of the most common types of compounds formed by elements is oxide compounds, which are formed by the combination of the element with oxygen.
Basic oxides are a type of oxide that reacts with water to form a basic (alkaline) solution. These oxides are typically formed by metals and metalloids, which have a tendency to lose electrons and form cations. When these cations react with oxygen, they form metal or metalloid oxides that are often basic in nature.
Element with Atomic Number 11
The element with atomic number 11 is sodium (Na), which is a metal that is highly reactive with water and other substances. Sodium has a tendency to lose its outermost electron to form a cation with a charge of +1. When sodium reacts with oxygen, it forms the oxide compound sodium oxide (Na2O).
Sodium oxide is a basic oxide that reacts with water to form a solution of sodium hydroxide (NaOH), which is a strong base. This reaction is exothermic, meaning that it releases heat, and is often used in industrial processes to produce sodium hydroxide for various applications.
Conclusion
In summary, the element with atomic number 11 (sodium) will form a basic oxide (sodium oxide), which reacts with water to form a solution of sodium hydroxide. This is because sodium is a metal that has a tendency to lose electrons and form cations, which react with oxygen to form metal oxides that are often basic in nature.