- Who give the modern periodic law?
- What is a relative periodic property?
- What is electronegativity explain periodicity in periodic table?
- What is periodic property of elements?
- What are the periodic trends for electronegativity?
- Which has highest electron affinity?
- What are the exceptions to electron affinity?
- Who is father of modern periodic table?
- Is electronegativity a periodic property?
- Which type of elements has no affinity for electrons?
- What was the basis of modern periodic law?
- What are periodic properties give four examples?
- What is a negative electron affinity?
- What does modern periodic law state?
- Which of the following are periodic properties?
- Is atomic mass periodic property?
- What is not a periodic property?
- Where is the highest electronegativity found?
Who give the modern periodic law?
The periodic law was developed independently by Dmitri Mendeleev and Lothar Meyer in 1869.
Mendeleev created the first periodic table and was shortly followed by Meyer.
They both arranged the elements by their mass and proposed that certain properties periodically reoccur..
What is a relative periodic property?
Electron affinity is a relative periodic property since its value is dependent upon the element with which it combines.
What is electronegativity explain periodicity in periodic table?
Electronegativity is a measure of the ability of an atom to attract the electrons when the atom is part of a compound. Electronegativity values generally increase from left to right across the periodic table. Electronegativities generally decrease from top to bottom of a group.
What is periodic property of elements?
The periodic table arranges the elements by periodic properties, which are recurring trends in physical and chemical characteristics. … These trends explain the periodicity observed in the elemental properties of atomic radius, ionization energy, electron affinity, and electronegativity.
What are the periodic trends for electronegativity?
On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group. As a result, the most electronegative elements are found on the top right of the periodic table, while the least electronegative elements are found on the bottom left.
Which has highest electron affinity?
chlorineHalogens has higher electron affinity and it is supposed to be for fluorine, but chlorine has higher electron affinity than fluorine due to fluorine’s smaller size. Hence, among given options chlorine has highest electron affinity.
What are the exceptions to electron affinity?
In general, exceptions arise when new subshells are being filled/half-filled, or in cases where the atom is too small. In the first case, Be and Mg are interesting examples: they have a positive electron affinity (just like N, in fact) because of the energy difference between the s and p subshells.
Who is father of modern periodic table?
Dmitri MendeleevAlbert GhiorsoPeriodic table/InventorsInternet search giant Google has dedicated a Doodle to Russian chemist Dmitri Mendeleev on his 182nd birth anniversary. Born on February 8, 1834, Mendeleev is popularly known as the “Father of Periodic Table”.
Is electronegativity a periodic property?
Electronegativity Trends Electronegativity can be understood as a chemical property describing an atom’s ability to attract and bind with electrons. … Electronegativity values for each element can be found on certain periodic tables.
Which type of elements has no affinity for electrons?
The noble gas elements.
What was the basis of modern periodic law?
The Modern Periodic Law is stated as: “Properties of elements are periodic functions of their atomic number”. Atomic number is the basis for modern periodic table. Atomic number is the number of protons in the nucleus, it is also equal to the number of electrons in the atom.
What are periodic properties give four examples?
Periodic Properties of Elements with Examples Atomic Radius: Atomic radius of elements decreases as we go from left to right in periodic table. … Ionization Energy: Energy required to remove an electron from atoms or ions is called ionization energy. … Electron Affinity: … Electronegativity: … Metal-Nonmetal Property:
What is a negative electron affinity?
Electron Affinity is the energy associated with the addition of an electon to a gaseous atom. … A more negative electron affinity corresponds to a greater attraction for an electron. (An unbound electron has an energy of zero.)
What does modern periodic law state?
Modern periodic law: The Modern periodic law states “The chemical and physical properties of elements are a periodic function of their atomic numbers”.
Which of the following are periodic properties?
Major periodic trends include electronegativity, ionization energy, electron affinity, atomic radii, ionic radius, metallic character, and chemical reactivity.
Is atomic mass periodic property?
Periodic Trends. Periodic trends, or periodicity, appear with remarkable accuracy for many physical and chemical properties. … The following properties will be discussed: metallic nature, atomic radii, ionic radii, reactivity, atomic mass, atomic number, ionization energy/electron affinity and electronegativity.
What is not a periodic property?
Yes, the properties of the elements within a period vary from element to element. For example, the metallic character decreases and the non-metallic character. Atomic mass just increases, no variation so it’s not periodic. Ionization energy increases from left to right in each period of the table so its.
Where is the highest electronegativity found?
Electronegativity increases from bottom to top in groups, and increases from left to right across periods. Thus, fluorine is the most electronegative element, while francium is one of the least electronegative.