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How does the acid-base nature of the oxides of the element in period 3 change with increasing atomic number?
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∙ 13y ago
Electronegativity, symbol χ (the Greek letter chi), is a chemical property that describes the tendency of an atom or a functional group to attract electrons (or electron density) towards itself and thus the tendency to form negative ions.[1] An atom's electronegativity is affected by both its atomic number and the distance that its valence electrons reside from the charged nucleus. The higher the associated electronegativity number, the more an element or compound attracts electrons towards it. First proposed by Linus Pauling in 1932 as a development of valence bond theory,[2] it has been shown to correlate with a number of other chemical properties. Electronegativity cannot be directly measured and must be calculated from other atomic or molecular properties. Several methods of calculation have been proposed and, although there may be small differences in the numerical values of the electronegativity, all methods show the same periodic trends between elements.
The most commonly used method of calculation is that originally proposed by Pauling. This gives a dimensionless quantity, commonly referred to as the Pauling scale, on a relative scale running from around 0.7 to 3.98 (hydrogen = 2.20). When other methods of calculation are used, it is conventional (although not obligatory) to quote the results on a scale that covers the same range of numerical values: this is known as an electronegativity in Pauling units.
Electronegativity, as it is usually calculated, is not strictly an atomic property, but rather a property of an atom in a molecule[3]: the equivalent property of a free atom is its electron affinity. It is to be expected that the electronegativity of an element will vary with its chemical environment,[4] but it is usually considered to be a transferable property, that is to say that similar values will be valid in a variety of situations.
The opposite of electronegativity is electropositivity: a measure of an element's ability to donate electrons.
Wiki User
∙ 13y ago
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How the atomic number properties generally change as you go from left to right in the periodic table?
The atomic number properties generally change as you go from left to right in the Periodic Table by increasing 1 each element.
When bonds between atoms are broken or formed is the outcome A a physical change B an element increasing in size C a chemical change D a change of state?
B. an element increasing in size Resources: Myself 6 years In College
The periodic law states that the properties of elements will repeat when the elements are arranged by _______.?
If the elements are arranged in the order of their increasing atomic numbers, there properties are repeated in a periodic manner.
Does the atomic no of an element change when its atom get converted into cations or anions?
no, it is still the same element just a different type
What was Seaborg's last major change to the Periodic Table?
seaborgium, the chemical element of atomic number 106, a very unstable element made by high-energy atomic collisions.
How the atomic number properties generally change as you go from left to right in the periodic table?
The atomic number properties generally change as you go from left to right in the Periodic Table by increasing 1 each element.
Does the element change when the atomic mass changes?
yes the element changes when the atomic mass changes
What can the atomic number and what things can it identify?
The atomic number is the number of protons in the nucleus of an element. It is what determines what kind of an element it is. When you change the number of protons in the nucleus, you change the type of element.
When the atomic mass changes does the element change also?
no
What information in the periodic table indicats the number of protons in a atom?
The atomic number represents the number of protons in the element. This number is unique to that element, if you change the atomic number (number of protons) then you change the element.
Why would an elements atomic number change after transmutation?
Transmutation by definition means the conversion of one element into another, and so it follows that its atomic number must also change. Every element has a unique atomic number.
Can the atomic number of an particular element ever change?
No, the atomic number of an element can't change. Because, we can identify an element by its atomic number and atomic mass. and hence they have been arranged in the periodic table on the basis of their mass number and atomic mass so , it couldn't be changed. Every element has a fixed atomic number..
Can the atomic mass of a particular element ever change?
yes
Which of the following determines the identity of an element atomic number mass number atomic mass or overall change?
atomic number
How does a neutral atom change when its number of protons electrons or nuetrons change?
The element becomes a new element becuase the atomic number would change. For example if you added a proton to Hydrogen-atomic number 1, it would become helium-atomic number 2
What is the difference between atomic mass number and atomic number?
Atomic mass number is the average atomic mass for that element, which is : All the isotopes' masses known for that element averaged up. Atomic number is the element's "identity", the number of protons the element and all its isotopes have. All the isotopes of a given element will have different number of electrons and neutrons, but the protons of the element never will change.
When bonds between atoms are broken or formed is the outcome A a physical change B an element increasing in size C a chemical change D a change of state?
B. an element increasing in size Resources: Myself 6 years In College
