Description : Which one of the following elements exhibits the greatest tendency to lose electrons? (1) Fluorine (2) Lithium (3) Oxygen (4) Zine
Last Answer : (2) Lithium Explanation: Alkali metals such as Lithium are the most electropositive elements in the periodic table. As alkali metals have low ionization energies, they have a great tendency to lose electrons forming unipositive ions.
Description : The reactivity of an ionic compound element is explained as its tendency to attain noble gas configuration. How do the elements do so? (1) Lose electrons (2) Gain electrons (3) Both are correct (4) Both are incorrect
Last Answer : (3) Both are correct Explanation: The reactivity of elements is explained as their tendency to attain a completely filled outer shell. This is called as having attained noble gas configuration. Once noble gas configuration is reached, the elements lose their reactivity.
Description : Which of the following elements gains electrons most readily? w) Sodium x) Magnesium y) Aluminum z) Fluorine
Last Answer : ANSWER: D -- FLUORINE
Description : As one moves down a group of the periodic table, the tendency to lose electrons does which of the following? w) increase x) decrease y) stay the same
Last Answer : ANSWER: W -- INCREASE
Description : Which element of Group 14 exhibits maximum tendency for catenation?
Last Answer : Ans. Carbon
Description : Name the element of group 14 which exhibits maximum tendency for catenation?
Last Answer : Ans –Carbon.
Description : Fluorine has -1 oxidation state while iodine exhibits oxidation states of -1, +1, +3 ,+5 and +7. This is due to
Last Answer : Fluorine has -1 oxidation state while iodine exhibits oxidation states of -1, +1, +3 ,+5 and ... availability of d-orbitals in iodine D. none of above
Description : Atoms like sodium and lithium often lose electrons, which makes them?
Last Answer : cations
Description : Which of the following elements has the highest electronegativity? w) Lithium x) Iodine y) Cesium z) Oxygen
Last Answer : ANSWER: D -- OXYGEN
Description : The more positive the E0, the greater the tendency of the oxidant member of that pair to (A) Lose electrons (B) Gain electrons (C) Lose (or) gain electrons (D) Lose and gain electrons
Last Answer : B
Description : If the more negative standard reduction potential of a redox pair, the greater the tendency to (A) To lose electrons (B) To gain electrons (C) To lose/gain electrons (D) To lose and gain electrons
Last Answer : A
Description : a) What is meant by periodicity in properties of elements with reference to the periodic table? (b) Why do all the elements of the same group have similar properties? (c) How will the tendency to gain electrons change as we go from left to right across a period? Why? -Science
Last Answer : (a) The repetition of same properties after definite interval is called periodicity in properties. (b) It is because they have same valence electrons therefore, have similar properties. (c) ... to right in a period because atomic size goes on decreasing and effective nuclear charge increases.
Description : Which among the following is not a characteristic of transition metals? (1) Tendency to gain electrons (2) Low electronegativity (3) Low ionization energy (4) Malleability
Last Answer : (1) Tendency to gain electrons Explanation: The transition metals have a tendency to lose electrons. Since the electrons in the highest energy level are actually on a lower principal enemy number than the ... ions, the 4s electrons are always lost first; so, they form only cations (positive ions).
Description : The bond most likely to be formed when two atoms differ SOMEWHAT in their tendency to attract electrons is: w) nonpolar ionic x) polar ionic y) polar covalent z) nonpolar covalent
Last Answer : ANSWER: Y -- POLAR COVALENT
Last Answer : Tendency to gain electrons
Description : Meat is rich in all of the following except (A) Iron (B) Fluorine (C) Copper (D) Zinc
Last Answer : Answer : B
Description : Which one of the following elements is used in the manufacture of fertilizers? (1) Fluorine (2) Potassium (3) Lead (4) Aluminium
Last Answer : (2) Potassium Explanation: Nitrogen, phosphorus and potassium are the three most common bases of fertilizers. Potash can be used to make potassium (K) fertilizers. All commercial potash deposits come originally from marine deposits and are often buried deep in the earth.
Description : Atomic number of which of the following elements is greater than that of Fluorine? (1) Sodium (2) Beryllium (3) Nitrogen (4) Boron
Last Answer : (1) Sodium Explanation: Sodium has higher atomic number (11) than Fluorine (9) The atomic number of Beryllium and Nitrogen are 4 and 7 respectively.
Description : Radon differs from other naturally radioactive elements in which one of the following ways. Is it because radon w) is extremely radioactive x) decays into the element radium y) is a noble gas z) is as chemically active as fluorine
Last Answer : ANSWER: Y -- IS A NOBLE GAS
Description : Which of the following elements has the highest first ionization energy? w) Helium x) Neon y) Fluorine z) Argon
Last Answer : ANSWER: W -- HELIUM
Description : The molar volume of which two elements is the same at standard temperature and pressure? w) fluorine and bromine x) fluorine and iodine y) fluorine and chlorine z) bromine and iodine
Last Answer : ANSWER: Y -- FLUORINE AND CHLORINE
Description : Teflon is produced by polymerizing ethylene which hydrogen substituted with one of the following elements: w) teflinium x) tin y) fluorine z) carbon
Last Answer : ANSWER: Y -- FLUORINE
Description : Which of the following elements forms a tetrahedra structure? w) carbon x) beryllium y) boron z) fluorine
Last Answer : ANSWER: W -- CARBON
Description : Which one of the following elements is used in the manufacture of fertilizers ? (1) Fluorine (2) Potassium (3) Lead (4) Aluminium
Last Answer : Potassium
Description : Which one of the following elements has valence electrons in the n = 3 shell? A beryllium B oxygen C silicon D neon E hydrogen
Last Answer : C silicon
Description : Assertion:- Ionic compounds exhibits electrical conductivity in solution state. Reason :- In solution state electrons of ionic compounds are free.
Last Answer : Assertion:- Ionic compounds exhibits electrical conductivity in solution state. Reason :- In solution state ... . If both Assertion & Reason are false
Description : Which of the following primary cells has the highest voltage ? A. Manganese-alkaline B. Carbon-zinc C. Lithium D. Mercury
Last Answer : C. Lithium
Description : The most electronegative element among the following is - (1) sodium (2) bromine (3) fluorine (4) oxygen
Last Answer : (3) fluorine Explanation: Fluorine is the most electronegative element, while francium is one of the least electronegative.
Description : The strongest oxidizing agent among the following is: (1) Chlorine (2) Iodine (3) Fluorine (4) Oxygen
Last Answer : (3) Fluorine Explanation: An oxidizing agent is a chemical species that removes an electron from another species. Fluorine, having the largest positive value of electrode potential, is the strongest ... all halogens have a tendency to take up electrons and thus act as strong oxidizing agents.
Description : The most electronegative element among the following is – (1) Fluorine (2) Sodium (3) Chlorine (4) Oxygen
Last Answer : (1) Fluorine Explanation: Electronegativity of the elements using the Pooling Scale is as follows: Fluorine: 3.98, Oxygen: 3.44, Chlorine: 3.16, and Sodium: 0.93. Electronegativity increases down the group and decreases down the period.
Description : A gas used as a disinfectant in drinking water is - (1) Hydrogen (2) Oxygen (3) Fluorine (4) Chlorine
Last Answer : (4) Chlorine Explanation: Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water.
Description : Which of the following is a monoatomic gas? (1) Oxygen (2) Neon (3) Nitrogen (4) Fluorine
Last Answer : (2) Neon Explanation: All elements will be monatomic in the gas phase at sufficiently high temperatures. At standard temperature and pressure (STP), all of the noble gases are monatomic. These ... krypton, xenon and radon. Monatomic hydrogen comprises about 75% of the elemental mass of the universe.
Description : List the following atoms in order of increasing electron affinity: oxygen, boron, and fluorine.
Last Answer : ANSWER: (1) BORON, (2) OXYGEN, (3) FLUORINE
Last Answer : Fluorine
Description : The most electronegative element among the following is (1) Fluorine (2) Sodium (3) Chlorine (4) Oxygen
Last Answer : Neon
Description : Lithium and beryllium, shows similarity with which elements .
Last Answer : Lithium shows similarities to magnesium and beryllium to aluminium in many of their properties. This type of diagonal similarity is commonly referred to as diagonal relationship in the periodic table.
Description : In the Lewis symbol for a fluorine atom there are paired and unpaired electrons.?
Last Answer : Yes. That is true. There are 3 pairs of electrons, and 1 loneunpaired electron.
Description : How many valence electrons are in the element fluorine and do the same for chlorine and bromine?
Last Answer : The number of valence electrons is seven.
Description : How many additional valence electrons does fluorine need to have full valence?
Last Answer : 7
Description : The open "Sigrees or coal stoves often require fanning to sustain burning because of (1) tendency of carbon dioxide to form a layer along with dust smoke (2) lack of oxygen in the ... 3) accumulation of smoke and dust over the sigrees (4) interrupted release of moisture from the material
Last Answer : (1) tendency of carbon dioxide to form a layer along with dust smoke Explanation: Burning coal requires oxygen to chemically react. The availability of oxygen is limited in the furnace by several factors ... dioxide from forming layer along with dust smoke so as to keep the supply of oxygen intact.
Description : The open "Sigrees" or coal stoves often require fanning to sustain burning because of (1) tendency of carbon dioxide to form a layer along with dust smoke (2) lack of oxygen in the ... 3) accumulation of smoke and dust over the sigrees (4) interrupted release of moisture from the material
Last Answer : tendency of carbon dioxide to form a layer along with dust smoke
Description : What Members of which group of elements lose 2 electrons to form cations with a plus 2 charge?
Last Answer : Need answer
Description : The elements which lose electrons in chemical reaction are called?
Last Answer : Metals
Description : Elements that conduct electricity and heat which tends to lose electrons are called?
Description : How many electrons are there in the lithium ion?
Last Answer : A lithium ion has 2 electrons. A lithium atom has 3 electronsand changes to an ion when it loses an electron.
Description : Why do atoms with a weak electronegativity like lithium have a weak attractive force for electrons?
Last Answer : they have few valence electrons and aren't close to having eightvalence electrons
Description : Atoms with a low electronegativity, like lithium, have a weak attractive force for electrons because?
Last Answer : They have few valence electrons and aren’t close to having eight valence electrons
Description : Which among the following is not a characteristic of transition metals? (1) Tendency to gain electrons (2) Low electro negativity (3) Low ionization energy (4) Malleability
Last Answer : (1) Tendency to gain electrons Explanation: The transition metals have a tendency to lose electrons. Since the electrons in the highest energy level are actually on a lower principal energy number than the ... makes it relatively easy to lose some or all of their electrons to land in stable state.