Which of the following elements is an halogen?

Q: A main group element with the valence electron configuration 2s22p3 is in periodic group__________…

A: Given electronic configuration is 2s22p3

Q: Rank the objects from lowest energy to highest energy nitrogen monoxide nitrogen dioxide dinitrogen…

A: No has lowest energy because of its linear structure and great bond strength. NO2 has a bent…

Q: Which of the following elements is expected to have the highest SECOND IONIZATION ENERGY:…

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Q: How does a proton affect an element's properties?

A: Matter is composed from the tiny particles known as atoms . Atoms are made from the subatomic…

Q: The newly discovered element Nh (Nihonium), with atomic number 113, would be a member of which…

A: Atomic number of this newly discovered element Nihonium (Nh) is 113. In the periodic table, period…

Q: A 4570 g sample of an element contains 5.009x10^25 atoms. Identify the element.  - Fe - V - Cr -…

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Q: What is the number of electrons for GaI3?

A: The question is based on the concept of chemical bonding. We have to identify total electron present…

Q: Which elements are considered to be representative elements?

A: Whole periodic table classified into 3 parts:-  Transition elements  Representative elements…

Q: Is astatine a nonmetal metal or metalloid

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Q: You have made up a new non-metal element, Lolium, and produced a gaseous compound from it with a…

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Q: An acid is a type of material that will increase the concentration of  ___ in water solution.…

A: Autoionization of water takes place as follows:

Q: what property is used to separate the aluminum sub group III A from the iron Sub group III B?

A: Solubility  is the property which is used to separate  aluminium and Iron in the  mixture .

Q: Which of the following elements would have the highest first ionization energy?   Question 21…

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Q: Assignment 1) Memorize names and symbols of the elements in • the first three rows of the periodic…

A: As per our guidelines we can only solve first three questions. Please resubmit the other questions…

Q: Describe each of the Hydrogen isotopes, as well as their ions

A: Mainly three isotopes of Hydrogen occurs in nature. These are  protium (1H), deuterium (2H) and…

Q: What is the most reactive metal to least reactive metal out of: Zinc Tim  iron  magnesium…

A: Metals are good conductor of heat and electricity for example: aluminium, copper whereas non metal…

Q: What is the atomic weight for the element that is in group 5A and period 4?

A: given: group 5A period 4

Q: Which of the following elements would have chemical properties similar to Ca   K, Ba, Kr, or Sc

A: Elements from same group have same chemical properties

Q: Which of the following should not be written as an electron dot symbol for a group 5 element?

A: Electron dot symbol is also known as  Lewis Structure.The electron dot symbol is used to represent…

Q: Which of the following noble gases is not reactive? O None of these are reactive helium and neon…

A: The question is asking us to identify which of the given noble gases are not reactive. Noble gases…

Q: Which of the following elements is largest in atomic size? A) Ba B) Ca C) Mg D) Be

A: The atomic size or radius of the element is said to be the distance from the nucleus of an atom to…

Q: what element would you expect to be very stable and unlikely to react with other elements

A: Given property of the elements,       Very stable and unlikely to react with other elements

Q: Arrange in order of increasing nonmetallic character (a) the Period 3 elements P, Cl, and Na(b) the…

A: On moving along the period, sodium to chlorine, the nuclear force of attraction increases due to…

Q: Consider Cr-54, Fe-54, Fe-58 and Ni-58 , which of this are isobars and which are isotopes

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Q: What are the family names for groups 3A, 4A, 5A, and 6A on the periodic table.

A: The family names for groups 3A, 4A, 5A, and 6A on the periodic table are given in step two.