Description : (a) What are groups' and periods' in the periodic table'? (b) Two elements M and N belong to group I and II respectively and are in the same period of the periodic ... Sizes of their atoms Their metallic characters Their valencies in forming oxides Molecular formulae of their chlorides -Science
Last Answer : (a) The vertical columns in the periodic table are called groups'. The horizontal rows in the periodic table are called periods'. (b) M' and N' belong to same period but group I ... oxides. Valency goes on increasing first and then decreases. MCI, NCI2 are molecular formulae of their chlorides.
Description : On going down in a group in the periodic table, the metallic nature of element
Last Answer : increases.
Description : How does electro positivity and electro negativity vary across a period and down a group?
Last Answer : Electro positivity decreases along a period and increases down the group. Electro negativity increases a period and decreases down the group. Electro positivity
Description : How does ionisation energy vary across a period and down a group?
Last Answer : Ionisation energy increases along a period and decreases down a group. Ionisation energy decreases with increase in the atomic size. Ionisation energy Increases Across a period (Left to right)
Description : Define ionization enthalpy. Name the factors on which ionisation enthalpy depends? How does it vary down the group and across a period?
Last Answer : Define ionization enthalpy. Name the factors on which ionisation enthalpy depends? How does it vary down the group and across a period?
Description : How does electro negativity vary down the group 17 and why? How does it vary from left to right in the period? Name an element having highest electro negativity.
Last Answer : Ans. Electro negativity decreases down the group due to increase in atomic size. It increases along the period from left to right due to decrease in atomic size. Fluorine (F) has highest electro negativity.
Description : Name two elements, which are Non-metallic in nature in 5th A group ?
Last Answer : Nitrogen and Phosphorous
Description : Which metal is more metallic in nature among 1A group elements ?
Last Answer : Francium
Description : How the atomic size vary in a group and across a period? Explain with suitable example.
Last Answer : How the atomic size vary in a group and across a period? Explain with suitable example.
Description : Choose the correct statement. (a) Electronegativity increases down a group (b) Electronegativity decreases down a group (c) Electronegativity decreases from left to right along a period (d) Electronegativity changes along a group, but remains constant along a period
Last Answer : Ans:(b)
Description : Assertion :- Metallic character increases on going down the group Reason :- I.E. decreases on going down the group
Last Answer : Assertion :- Metallic character increases on going down the group Reason :- I.E. decreases on going ... . D. If both Assertion & Reason are false
Description : For steady ideal fluid flow, the Bernoulli's equation states that the (A) Velocity is constant along a stream line (B) Energy is constant throughout the fluid (C) Energy is constant along a stream line, but may vary across stream lines (D) None of these
Last Answer : (C) Energy is constant along a stream line, but may vary across stream lines
Description : According to Bernoulli's equation for steady ideal fluid flow (A) Principle of conservation of mass holds (B) Velocity and pressure are inversely proportional (C) Total energy is constant throughout (D) The energy is constant along a streamline but may vary across streamlines
Last Answer : Answer: Option D
Description : Looking for something? Open me. I'm sure that your something inside of me lies. Of course you can always find hope in me (Though despair must come first; and later, surprise), What's sought, though, depends on the ... 's a clue: The answer - what I mean - lies inside of me, too. What am I? -Riddles
Last Answer : A dictionary
Description : The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive) is called (a) repeated stress (b) yield stress (c) fluctuating stress (d) alternating stress
Last Answer : (c) fluctuating stress
Description : The extent of audit planning will vary according to the following: a. Auditor’s experience with the entity. b. The nature and complexity of the audit engagement. c. Size of the entity. d. All of the above
Last Answer : All of the above
Description : Which statement is correct regarding the relationship between internal auditing and the external auditor? a. Some judgments relating to the audit of the financial statements are those of the ... opinion expressed, however that responsibility may be reduced by any use made of internal auditing
Last Answer : Certain aspects of internal auditing may be useful in determining the nature, timing and extent of external audit procedures.
Description : Alluvial soils vary in nature from sandy loam to clay. They are generally - a. poor in potash and rich in phosphorus b. poor in both potash and phosphorus c. rich in both potash and phosphorus d. rich in potash and poor in phosphorus
Last Answer : d. rich in potash and poor in phosphorus
Description : A cross a metallic conductor of non-uniform cross-section, a constant potential difference is applied. The quantity which remain (s) constant along th
Last Answer : A cross a metallic conductor of non-uniform cross-section, a constant potential difference is applied ... current C. drift velocity D. electric field
Description : When the rate of flow of charge through a metallic condoctor of non-uniform cross-section is uniform, then the quantity that remains constant along th
Last Answer : When the rate of flow of charge through a metallic condoctor of non-uniform cross-section is ... . electric field C. electric potential D. current
Description : The least metallic in nature is?
Last Answer : Fluorine
Description : How many of the following properties of halogen Increases with increase In atomic number. (a) Number of valence electron (b) Metallic nature (c) Boili
Last Answer : How many of the following properties of halogen Increases with increase In atomic number. (a) Number of ... . (j) `Delta_"eg"H` (magnitude wise)
Description : Generally metallic oxides are basic and non-metallic are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red? a)sulphur dioxide b)Magnesium oxide c)iron oxide d)copper oxide
Last Answer : a)sulphur dioxide
Description : Figure out the odd statement about ceramics in the following (a) Good insulators of heat and electricity (b) Usually less desire than metals (c) Ductile in nature (d) Contains both metallic and nonmetallic elements
Last Answer : (c) Ductile in nature
Description : How does valency of an element vary across a period?
Last Answer : How does valency of an element vary across a period?
Description : During secular variation of magnetic meridian at different places (A) Range of oscillations is constant (B) Period of oscillation is constant (C) Range and period of oscillation both vary (D) Period of oscillation only varies
Last Answer : (C) Range and period of oscillation both vary
Description : The elements of the third period of the Periodic Table are given below: periodic-classification-of-elements-chapter-wise-important-questions-class-10-science-1 (a) Which atom is bigger, Na or Mg? Why? (6) Identify the most (i) metallic and (ii) non-metallic element in Period 3. -Science
Last Answer : (a) Sodium is bigger than magnesium as it has lesser nuclear charge so there is less force of attraction between nucleus and valence electrons and less effective nuclear charge. It is, therefore, ... the most non-metallic element because it can gain electrons easily due to its smallest atomic size.
Description : 1The elements of the second period of the Periodic Table are given below: Li Be B C N O F (a) Give reason to explain why atomic radii decrease from Li to F. (b) Identify the most (i) metallic and (ii)non-metallic element. -Science
Last Answer : a) It is because nuclear charge increases due to increase in atomic number, therefore, force of attraction between nucleus and valence electrons increases, i.e. effective nuclear charge increases, hence ... element is ‘F’ because it can gain electrons easily due to smallest atomic size.
Description : Give reason: Metallic articles which are exposed to air over long period of time lose their lustre.
Last Answer : Due to the formation of oxide, hydroxide and carbonate layers.
Description : ECE Board Exam March 1996 One type of pulse communications system uses pulse that appear as a group, and which vary in number according to the loudness of the voice. This type of ... A. pulse duration modulation B. pulse amplitude modulation C. pulse code modulation D. pulse position modulation
Last Answer : A. pulse duration modulation
Description : In research, something that does not "vary" is called a ___________. a. Variable b. Method c. Constant d. control group
Last Answer : d. control group
Description : The first element of 14 th group is carbon, which is a non-metal. The metallic members of this group are
Last Answer : tin and lead
Description : Identify the group 14 element that best fits each of the following description. A. Non-metallic element B. Form the most acidic oxide
Last Answer : Identify the group 14 element that best fits each of the following description. A. Non-metallic ... oxidation state. D. Forms strong π bonds.
Description : An unknown element is a soft metallic solid. It is highly reactive and has a low melting point. In which group of the periodic table is it most likely to be found?
Last Answer : Sodium - group 1
Description : Which member of the GROUP SIX A elements is the least metallic?
Last Answer : ANSWER: OXYGEN
Description : State true or false. Correct the false statement. A. The acidic nature of oxides of group 13 increases down the graph.
Last Answer : State true or false. Correct the false statement. A. The acidic nature of oxides of group 13 ... catenation is much higher for C than for Si.
Description : Two metallic blocks having masses in the ratio 2:3 are made to slide down a frictionless inclined plane starting from rest position. When the blocks reach the bottom of the inclined plane, they will have their kinetic energies in the ratio : (A) 2:3 (B) 3:5 (C) 3:2 (D) 7:4
Last Answer : Two metallic blocks having masses in the ratio 2:3 are made to slide down a frictionless inclined plane starting from rest position. When the blocks reach the bottom of the inclined plane, they will have their kinetic energies in the ratio : 2:3
Description : Assertion : Zona pellucida is glycoproteinous in nature and dissolved during the event of implantation . Reason : The blastocyst , along with zona pel
Last Answer : Assertion : Zona pellucida is glycoproteinous in nature and dissolved during the event of implantation . ... . If both Assertion & Reason are False.
Description : Highlight any three hydraulic structures as part of water management programmes initiated in ancient India along with the period when they were built. -SST 10th
Last Answer : Sophisticated hydraulic structures like dams build of stone rubble, reservoirs or lakes, embankments and canals for irrigation were built in various regions of the country. (i) A sophisticated water ... was constructed by Iltutmish in the 14th century to supply water to the Siri Fort Area.
Description : What behavior causes an animal to be inactive for along period of time?
Last Answer : What is the answer ?
Description : Hale Company sells merchandise on account for $1,500 to Kear Company with credit terms of 2/10, n/30. Kear Company returns $300 of merchandise that was damaged, along with a check to settle the account within the discount ... is the amount of the check? a. $1,470 b. $1,476 c. $1,200 d. $1,176
Last Answer : d. $1,176
Description : Holt Company sells merchandise on account for $2,000 to Jones Company with credit terms of 2/10, n/30. Jones Company returns $400 of merchandise that was damaged, along with a check to settle the account within the discount ... the amount of the check? a. $1,960 b. $1,968 c. $1,600 d. $1,568
Last Answer : d. $1,568
Description : Final disposal of undelivered postal articles a) Letters and postcards shall be destroyed b) Money or saleable property, not being of a perishable nature, found in any undelivered postal article, shall be ... property, be sold, the sale-proceeds being credited to the Post Office. e) All the above
Last Answer : e) All the above
Description : Do you think COVID will become like the flu with new strains each year and new vaccines that vary in their effectiveness?
Last Answer : That seems to be the prediction I’ve been reading.
Description : What are the regulations regarding PAs (physician assistants) and writing prescriptions? Are these Federal regulations or vary by State?
Last Answer : They are allowed to prescribe medications. Limitations of what they can and can't prescribe varies by state in the US although it seems that the limitations are primarily concerned with controlled drugs (i.e ... state but as far as I can see that wouldn't mean they have to review every prescription.
Description : Why does my literacy ability vary according to time?
Last Answer : You ask about literacy and say that you’re educated, then you mention your eyeglasses. Could you give us a clarification? Are you asking about your ability to comprehend what you read, or are you asking about physical impediments to focusing on and reading the words?
Description : Does silence vary in its "depths"?
Last Answer : answer:People say that the majority of those who go into an anechoic chamber go batty within a few minutes. Even there, there is not such thing as total silence, since someone with normal ... or concert. It seems culturally ingrained for most people to want the distraction of noise and movement.
Description : Just recently I'm noticing that the alcohol content of beers can vary by a lot. Do you prefer lower or higher alcohol content?
Last Answer : I have never been able to tolerate the smell or taste of beer. But if I was forced to drink it and I had a choice of alcohol content it world have 0% alcohol.
Description : Does photosynthesis activity vary based on the amount of available CO2?
Last Answer : It would be an asymptotic curve leveling off as the atmosphere approaches the levels plants have evolved to expect here on Earth. A pure CO2 atmosphere, even if it were possible to eliminate the ... that would generate, would be no better for plants than the atmosphere the have thrived in.
Description : With accents, do perceptions vary by gender?
Last Answer : Sometimes, yes. I’m from the south and I consider some southern accents to actually be very hicky as opposed to a sweet southern lilt. I don’t think it matters much with the gender. Hick is hick, no mater the gender.