Description : What is the coefficient of “p” after simplifying the following expressions 6y + 7p – 3y + 6p -7p²A. 7B. 9C. 13D. 22?
Last Answer : A. 7B. 9C. 13D. 22
Description : What is the answer to (-6p-8)-(2p-6)?
Last Answer : the answer isn't the answer it equals the question!!!!!andthat's true!!
Description : An electron is present in 4 f sub - shell . The possible values of azimuthal quantum number for this electron are :-
Last Answer : An electron is present in 4 f sub - shell . The possible values of azimuthal quantum number for this electron are :- A. ... 3 B. 1 ,2, 3, 4 C. 3 D. 4
Description : Which element has the lowest electron affinity? -Do You Know?
Last Answer : answer:
Description : Assertion :- First electrons affinity fo all element is positive. Reason :- Successive electron affinity of all elements is negative
Last Answer : Assertion :- First electrons affinity fo all element is positive. Reason :- Successive electron affinity ... D. If both Assertion & Reason are false
Description : What of the element out of calcium argon sodium nitrogen oxygen and chlorine can become stable by losing 1 electron?
Last Answer : Sodium. A sodium atom has one valence electron in its 3rd energy level. This is very unstable, so a sodium atom will lose that single valence electron to another atom (nonmetal), and the 2nd energy ... sodium ion, Na+, will bond with a negatively charged ion; either a nonmetal or a polyatomic ion.
Description : What element have 7 protons 8 neutron and 7 electron?
Last Answer : This is the isotope nitrogen-15.
Description : What is the electron configuration for the element S?
Last Answer : The electron configuration of sulfur is [Ne]3s2.3p4.
Description : What is the electron configuration for the element Al?
Last Answer : The electron configuration of aluminium is [Ne]3s2.3p1.
Description : What element with an electron configuration that ends with np2 where n is any principal quantum number?
Last Answer : Feel Free to Answer
Description : What element has the same valence electron configuration as phosphorus?
Last Answer : The answer is nitrogen. Nitrogen is one example of an elementthat has the same valence electron configuration asphosphorus.Ê
Description : What is the electron configuration of the element Ag?
Last Answer : What is the answer ?
Description : In an electron dot diagram of potassium There is one dot. In an electron dot diagram of silicon there are four dots. Which element would you expect to be more reactive?
Last Answer : silicon
Description : What element has an atomic number lower than that of aluminum and one less valence electron than group 16 elements?
Last Answer : Nitrogen
Description : Chlorine atom becomes a chloride ion by (a) Losing an electron (b) Gaining an electron (c) Sharing its electron with another element (d) Gaining a neutron
Last Answer : Ans:(b)
Description : The smallest particle of an element is called - (1) Ion (2) Electron (3) Atom (4) Molecule
Last Answer : (3) Atom Explanation: An element is a substance completely made up of one atom. However, the atom itself is not the smallest known particle, but instead each atom is made up of three individual parts: electrons, protons and neutrons.
Description : Which element has the lowest electron affinity?
Last Answer : Argon
Description : From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. ( ... . (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.
Last Answer : Ans. (a). The element chlorine (Cl) has the highest negative electron gain enthalpy. (b). The element cesium (Cs) has lowest ionization enthalpy. (c). The element fluorine F has lowest atomic radius. (d ... zero group (or group 18). (g). The element carbon (C) forms the largest number of compounds.
Description : The energy required to remove the electron from the outermost shell from a free and isolated atom of the element is called
Last Answer : Ionisation energy.
Description : The element from the elements Li, Na, K, having the least number of electron shells is
Last Answer : Li.
Description : An inert element has electron shells that a. Overlap The Shells Of Other Atoms. b. Are Completely Filled With Electrons. c. Yield Hydrogen Ions. d. Form Covalent Bonds.
Last Answer : b. Are Completely Filled With Electrons.
Description : The electron beam in a CRT is made to sweep from left to right across the screen. What tube element causes this sweeping motion?
Last Answer : The horizontal-deflection plate.
Description : What element in the magnetron causes the curved path of electron flow?
Last Answer : The permanent magnet.
Description : How to determine sub energy level ?
Last Answer : According to wave mechanics, the specific three-dimensional space around the nucleus that has the highest probability of receiving electrons is called the substratum. n = prime quantum number (indicates major energy level) l = ... indicates rotation of electrons) s values of + 1/2 and - 1/2 .
Description : What is the education sub-system at secondary level ?
Last Answer : There are 3 education subsystems at the medium level.
Description : How many different sub levels are there in the third level?
Last Answer : Need answer
Description : How many orbitals make up any s -sub level? (a) 1 (b) 3 (c) 5 (d) 7
Last Answer : Ans:(a)
Description : Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has – (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge
Last Answer : (3) stable half filled 2p sub level Explanation: Ionization energy is a measure of the ease in which atoms lose electrons and become positive ions.
Description : Every public authority shall designate an officer at each sub divisional level a) Central Asst. public information officers/State Asst. public information officer b) Central information/State information ... c) Central public information officer/State public information officer d) All the above
Last Answer : d) All the above
Description : The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese.
Last Answer : (b) calcium
Last Answer : b) calcium
Description : The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese
Last Answer : magnesium
Description : Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels. (A) 75 (B) 95 (C) 120 (D) 140
Last Answer : (B) 95
Description : To prevent movement of moisture from sub-grade to road pavement at the same level as that of water-table, thickness of a cut off layer of coarse sand, is (A) 15 cm (B) 20 cm (C) 30 cm (D) 45 cm
Last Answer : Answer: Option A
Description : Sub metering data helps to determine which data. a) financial data b) yield data c) system level performance data d) none of the above
Last Answer : yield data
Description : Under the Scheduled Tribes and Other Traditional Forest Dwellers (Recognition of Forest Rights) Act, 2006, the Sub-Divisional Level Committees and the District Level Committees for vesting of forest rights a) must ... b) must have at least 2 women members in each c) need not have any woman member
Last Answer : a) must have at least 1 woman member in each
Description : Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge
Last Answer : stable half filled 2p sub level
Description : Define : i) Atomic number ii) Atomic mass number iii) Energy level iv) Sub energy level
Last Answer : i) Atomic number: It is defined as; the number of protons present in the nucleus, which exactly balances the number of electrons present in the extra nuclear part. ii) Atomic mass number: It ... : The close grouping of number of energy levels in the main energy level is called sub energy level.
Description : What is the energy level of an electron ?
Last Answer : : According to Baer's atomic theory, we know that electrons revolve around the nucleus in a supposed orbit. The radii of these orbits are precise. These orbits involve a certain amount of energy. ... described as the first energy level and the energy of the second orbit as the second energy level.
Description : An electron in an excited hydrogen atom acquired an energy of 12.1 eV. To what energy level did it jump? How many spectral lines may be emitted in the
Last Answer : An electron in an excited hydrogen atom acquired an energy of 12.1 eV. To what ... to lower energy level? Calculate the corresponding wavelengths.
Description : When an electron fall from the third energy level to the second energy level it must?
Description : Which of the following properties distinguish a material as conductor, insulator and semiconductor? a) Free electron charges b) Fermi level after doping c) Energy band gap d) Electron density
Last Answer : c) Energy band gap
Description : The acquisition energy by glucose fermentation requires A.substrate-level phosphorylation B.electron transport of electrons from NADH C.long-chain fatty acid oxidation D.the enzyme formic-hydrogen lyase
Last Answer : A.substrate-level phosphorylation
Description : Most of the energy in aerobic respiration of glucose is captured by A- substrate-level phosphorylation B- electron transport of electrons from NADH C- long-chain fatty acid oxidation D- the enzyme formic-hydrogen lyase
Last Answer : electron transport of electrons from NADH
Description : Oxidative phosphorylation involves (A) Electron transport system (B) Substrate level phosphorylation (C) Reaction catalyzed by succinic thiokinase in TCA cycle (D) None of the above
Last Answer : (A) Electron transport system