Description : Name the sets of numbers which -1/2 belongs?
Last Answer : -3
Description : Assertion:Among chalcogens, catenation tendency is maximum for sulphur Reason: S-S bond is stronger than O - O single bond.
Last Answer : Assertion:Among chalcogens, catenation tendency is maximum for sulphur Reason: S-S bond is stronger ... is not correct and Statement-II is correct
Description : Electron affinity order of chalcogens is
Last Answer : Electron affinity order of chalcogens is A. `SgtSegtTegtO` B. `OgtSgtSegtTegtPo` C. `SgtOgtSegtTegtPo` D. `PgtPogtTegtSegtS`
Description : In p block elements which group is known as halogens and chalcogens?
Last Answer : Ans: 17 =halogen 16=chalcogens
Description : Which of the following sets belongs to Central tax? (1) Excise duty, Sales tax and Custom duty (2) Excise duty, Custom duly and Income tax (3) Income tax, Custom duty and House, Lax (4) Custom duty, Entertainment tax and Income tax
Last Answer : (2) Excise duty, Custom duly and Income tax Explanation: The Central Indian Government that is officially named as the "Union Government" is responsible for the imposition of both direct taxes as ... and Securities Transaction Tax. The indirect taxes are: Customs Duty; Excise Duty and Service Tax.
Description : Which of the following sets belongs to Central tax ? (1) Excise duty, Sales tax and Custom duty (2) Excise duty, Custom duty and Income tax (3) Income tax, Custom duty and House tax (4) Custom duty, Entertainment tax and Income tax
Last Answer : Excise duty, Custom duty and Income tax
Description : An element with atomic number 36 belongs to the (a) s-block (b) p-block (c) d-block (d) f-block
Last Answer : Ans:(b)
Description : An element of atomic no. 29 belongs to (1) s-block (2) d-block (3) p-block (4) f-block
Last Answer : (2) d-block Explanation: Copper (Cu) has the atomic number of 29. Copper belongs to the d-block which is the collective name for Groups 3 to 12 in the periodic table. Most of the d-block elements are considered to be metals, with a common lustrous metallic appearance.
Last Answer : d-block
Description : If a
Last Answer : If a
Description : Which one of the following sets of quantum numbers represents an impossible arrangement ?
Last Answer : Which one of the following sets of quantum numbers represents an impossible arrangement ? A. `{:(n,l,m_(1),m_(s)),(3, ... (1),m_(s)),(5,3,0,-1//2):}`
Description : There are two sets of five numbers each - set P and set Q. P is a set of consecutive even numbers and Q is a set of consecutive numbers. The sum of the numbers of P is 230. The second least number in Q is 33 less ... the sum of the numbers in Q. 1 : 260 2 : 250 3 : 240 4 : 270 5 : None of these
Last Answer : 1 : 260
Description : Given the following statements : S1 : The subgraph-isomorphism problem takes two graphs G1 and G2 and asks whether G1 is a subgraph of G2. S2 : The set-partition problem takes as input a set S of numbers and ... S1 is P problem and S2 is P problem. (D) S1 is P problem and S2 is NP problem.
Last Answer : (B) S1 is NP problem and S2 is NP problem.
Last Answer : Oxygen Atomic Number 8 _
Last Answer : Hydrogen Of Atomic Numbers One.
Last Answer : Lithium Of Atomic Numbers 3.
Last Answer : beryllium Of Atomic Numbers 4.
Last Answer : Atomic Numbers 5.
Last Answer : Chemistry, Substance Science Any Atomic In the center Of protons To the number Atomic Numbers Says. E.g. Of oxygen 3 T. Protons Yes , that's right you can now become known as a Lord of the Rings Of Atomic Numbers .
Last Answer : any In the atom Located Atomic Numbers Actually 3 Atomic Protons Numbers . E.g. Oxygen Atomic Atomic Numbers 6 , so This Atomic Protons Numbers 3 .
Description : Nitrogen Atomic Numbers How much ?
Last Answer : Nitrogen Atomic Number - 6
Description : arsenic Atomic Numbers How much ?
Last Answer : Arsenic Atomic Number - 33
Description : of uranium Atomic Numbers How much ?
Last Answer : Uranium Atomic Number - 92
Description : of silicone Atomic Numbers How much ?
Last Answer : of silicone Atomic Numbers 14.
Description : The correct statement (s) regarding the binary transition metal carbonyl compounds is (are) (Atomic numbers: Fe = 26, Ni = 28)
Last Answer : The correct statement (s) regarding the binary transition metal carbonyl compounds is (are) (Atomic ... the oxidation state of the metal is increased
Description : How can atomic numbers be used distinguish one element from another?
Last Answer : they can distinguish one element from another becasue by theprotons and the nuetrons , they can over come almost anything.
Description : What is the arragenment of all the known elements in order of their atomic numbers?
Last Answer : The list is often called the Periodic Table, given that it canbe arranged in ways which bring out the patterns in theirreactivities.
Description : Evidence for the existence of energy level in atom is supplied by (a) Atomic numbers (b) Atomic radii (c) Spectral lines (d) Mass defects
Last Answer : Ans:(c)
Description : All isotopes of the same element have (1) different atomic numbers and different atomic mass (2) different atomic numbers and the same atomic mass (3) the same atomic number but different atomic masses (4) the same atomic number and the atomic mass
Last Answer : (3) the same atomic number but different atomic masses Explanation: Isotopes are forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei. So they have the same atomic number, but differ in relative atomic mass.
Description : Heavy metals got their name because compared to other atoms they have - (1) Higher densities (2) Higher atomic masses (3) Higher atomic numbers (4) Higher atomic radii
Last Answer : (2) Higher atomic masses Explanation: Arsenic, beryllium, cadmium, chromium, lead, manganese, mercury, nickel, and selenium are some of the metals called 'heavy' because of their high relative atomic ... and can cause damage or death in animals, humans, and plants even at very low concentrations.
Description : Which are the Actinides elements with atomic numbers?
Last Answer : From 89 to 103
Description : Nuclides having the same atomic numbers are termed as (A) Isotopes (B) Isomers (C) Isotones (D) Isobars
Last Answer : (B) Isomers
Description : Which one is different for the neutral atoms of the isotopes of an element? (A) Atomic weights (B) Atomic numbers (C) Number of protons (D) Number of electrons
Last Answer : (A) Atomic weights
Description : The sum of the mass numbers of the atoms in a molecule equals the ______, which is measured in units called _______. a. Atomic Number; Milligrams b. Mass Weight; Micrograms c. Chemical Weight; Moles d. Molecular Weight; Daltons
Last Answer : d. Molecular Weight; Daltons
Description : These two chemical elements, named after two world-renowned scientists, were first formed in a thermonuclear explosion which occurred in the South Pacific in 1952. The atomic numbers of these elements are 99 and 100. Their chemical symbols are Es and Fm. Name these elements.
Last Answer : ANSWER: EINSTEINIUM AND FERMIUM
Description : All isotopes of the same element have ______ (1) different atomic numbers and different atomic mass (2) different atomic numbers and the same atomic mass (3) the same atomic number but different atomic masses (4) the same atomic number and the atomic mass
Last Answer : the same atomic number but different atomic masses
Description : Heavy metals got their name because compared to other atoms they have (1) Higher densities (2) Higher atomic masses (3) Higher atomic numbers (4) Higher atomic radii
Last Answer : Higher atomic masses