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Explain how one and two letters chemincal symbols are used to identify elements whose mnames begin with same letterfor example hydrogen?
In the periodic table, elements are represented by chemical symbols, which are typically one or two letters long. For elements whose names start with the same letter, such as hydrogen (H) and helium (He), unique symbols are assigned by using the first letter of the element's name and combining it with the next available letter to avoid duplication. This system ensures that each element has a distinct symbol, facilitating clear communication in scientific contexts. For instance, while both hydrogen and helium start with 'H', helium is designated as 'He' to differentiate it.
Is water an element or a compound explain with an diagram?
Water is a compound made up of two hydrogen atoms bonded to one oxygen atom (H2O). It is not an element because it is composed of different types of atoms. An elemental diagram would not be suitable to show this compound.
Explain why hydrogen is not included in group 1 in most versions of the modern periodic table?
Hydrogen is not included in group 1 in most versions of the modern periodic table because it does not exhibit the typical characteristics of alkali metals found in group 1. While hydrogen can lose an electron to form a positive ion like alkali metals, it can also gain an electron to form a negative ion like halogens. This dual behavior makes hydrogen unique and not easily categorized with alkali metals. Therefore, it is often placed separately at the top of the periodic table.
Why was basis of classification of element in the periodic table changed from atomic mass to atomic number?
Mendeleev's periodic table was based on the atomic masses of elements. However, this was not effective when isotopes were discovered. An isotope of an element is defined as the element having the same atomic number but varying mass numbers. So, mass numbers weren't constant and hence, a better characteristic was chosen -atomic number. Atomic number of any element was a characteristic of a particular element. Hence atomic numbers were taken as the basis of classification instead of atomic masses.
Is every element in the periodic table follows the aufbau principle true?
Yes, every element in the periodic table follows the Aufbau principle, which states that electrons occupy the lowest energy orbitals first before filling higher ones. This principle helps explain the electron configuration of elements based on their atomic number. However, there are exceptions in certain cases, such as transition metals and heavier elements, where electron-electron interactions and stability considerations can lead to deviations from the expected order.
Can you explain the atomic mass of the element beryllium?
Berlium is a element in the periodic table i think. i dont know for certian what they use it for though
Explain why hydrogen is unique?
Hydrogen is unique because it is the lightest and simplest element in the periodic table, consisting only of one proton and one electron. It is the most abundant element in the universe and has diverse applications in industries such as energy production and electronics. Hydrogen's versatility also makes it a promising candidate for clean energy solutions, particularly in the form of hydrogen fuel cells.
Is ammonia a compound or element explain?
it is a compound , it is made up of nitrogen and hydrogen with the formula NH3
Explain how information about an element's physical state at room temperature will help you fill in the partial periodic table?
Knowing an element's physical state at room temperature will help you place it in the correct region of the periodic table under metals, nonmetals, or metalloids categories. For example, if an element is a gas at room temperature, it's likely a nonmetal and should be placed on the right side of the periodic table. Conversely, if it's a solid, it's more likely a metal or metalloid and should be placed on the left or middle of the periodic table.
Is ammonia an element or a compound explain?
it is a compound , it is made up of nitrogen and hydrogen with the formula NH3
Why are different masses of each element required to react with the same amount of hydrogen?
Each element has a different molar mass and Molarity, using stoichiometry the conversion of molar mass can explain why.
Explain why there should be a connection between an element electron configuration and its location on the periodic table?
An element's electron configuration determines its chemical properties, which in turn influence its placement on the periodic table. Elements with similar electron configurations tend to exhibit similar chemical behavior and are grouped together on the periodic table in columns (groups). The periodic table is organized based on similarities in electron configurations to help predict an element's properties based on its location.
Do an element molecule compound or mixture explain when 2 oxygen atoms bond chemically with 2 hydrogen atoms and hydrogen peroxide is formed?
1. Hydrogen peroxide is a chemical compound.2. Because the direct method of preparation is not possible hydrogen peroxide is obtained from oxygen and hydrogen by the intermediate of antraquinone, using a palladium catalyst.
Did Bohr's model of the atom explain hydrogen's flammability?
Bohr's model of the atom doesn't explain hydrogen's flammability.
How do you explain what an element is to kids?
An element is a pure substance made up of only one type of atom. Think of them as the building blocks of everything around us, like how Lego blocks come in different shapes and colors. Each element has its own unique properties that make it special.
How does atomic number explain the arrangement of the periodic table?
According to the modern periodic table "Elements are the periodic function of their atomic number".They are arranged in increasing atomic no. in the periodic table.
What is the purpose of periodic performance reports in real estate?
Explain the purpose of a periodic performance report (two benefits)
