How can chemists state with certainty that no one will discover an element that would appear on the periodic table?

How can chemists state with certainty that no one will discover an element that would appear on the periodic table?
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Do chemists have to memorize all the elements of the periodic table?

Description : Do chemists have to memorize all the elements of the periodic table?

Last Answer : answer:I don't see why they would have to , since most chemists don't work with all elements. On the other hand, just like readers memorized the alphabet and how to spell and ... have similar properties to each other, as well as isotopes of each. Familiarity sometimes breeds more familiarity.

How was Mendeleev and periodic table different from those of other chemists of the time?

Description : How was Mendeleev and periodic table different from those of other chemists of the time?

Last Answer : Feel Free to Answer

What year did joseph priestly discover the periodic table?

Description : What year did joseph priestly discover the periodic table?

Last Answer : Dont know clever srilankan boy, yes my land gaggie

What is the only letter in the alphabet that does not appear anywhere on the periodic table of elements? -Riddles

Description : What is the only letter in the alphabet that does not appear anywhere on the periodic table of elements? -Riddles

Last Answer : The Letter J.

Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Description : Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Last Answer : ANSWER: GERMANIUM

What element is not on the periodic table? -Riddles

Description : What element is not on the periodic table? -Riddles

Last Answer : The Element of Surprise.

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

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.

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

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.

what is the 110 element of periodic table?

Description : what is the 110 element of periodic table?

Last Answer : DS Darmstadtium

What is the six element of the periodic table of elements?

Description : What is the six element of the periodic table of elements?

Last Answer : Family six on the Periodic Table of elements is also know asChalcogens

What is the signal of the last element of the periodic table ?

Description : What is the signal of the last element of the periodic table ?

Last Answer : Uuo The last element of the periodic table.

Which is the first element in the periodic table ?

Description : Which is the first element in the periodic table ?

Last Answer : The first element in the periodic table is hydrogen ( H) .

What is the name of the last element of the periodic table ?

Description : What is the name of the last element of the periodic table ?

Last Answer : The last element of the periodic table is called Ogneson ( Og) .

Which element of the periodic table has the highest value ?

Description : Which element of the periodic table has the highest value ?

Last Answer : Uranium has the highest value.

Astatine is the element below iodine in the group `VIIA` of the periodic table. Which of the following statements is not true for astatine?

Description : Astatine is the element below iodine in the group `VIIA` of the periodic table. Which of the following statements is not true for astatine?

Last Answer : Astatine is the element below iodine in the group `VIIA` of the periodic table. Which of the following ... iodine molecules. D. (D) None of these.

(A) The position of an element an element in periodic in table after emission of one `alpha` and two `beta`-partilce remians unchanged. (R ) Emission

Description : (A) The position of an element an element in periodic in table after emission of one `alpha` and two `beta`-partilce remians unchanged. (R ) Emission

Last Answer : (A) The position of an element an element in periodic in table after emission of one `alpha` and two `beta` ... D. If both (A) and (R ) are incorrect.

A radioactive element is preset in VIII group of the periodic table. If it emits one `alpha`particle, the new position of the nuclide will be

Description : A radioactive element is preset in VIII group of the periodic table. If it emits one `alpha`particle, the new position of the nuclide will be

Last Answer : A radioactive element is preset in VIII group of the periodic table. If it emits one `alpha`particle, the new ... . VI B B. VIII C. VIIB D. I B

If the valence shell electronic configuration of an element is 3s^2 3p^1, in which block of the periodic table is it placed?

Description : If the valence shell electronic configuration of an element is 3s^2 3p^1, in which block of the periodic table is it placed?

Last Answer : If the valence shell electronic configuration of an element is 3s2 3p1, in which block of the periodic table is it placed?

Which is the first element in the periodic table?

Description : Which is the first element in the periodic table?

Last Answer : Which is the first element in the periodic table?

What can you predict about an element from its position on the periodic table?

Description : What can you predict about an element from its position on the periodic table?

Last Answer : Its position predicts several useful characteristics:1. The no. of valence electrons/the type of valence orbitals2. The nature of element3. Other Elements having similar chemistry4. rough idea of the ionization enthalpy, electronegativity, andother parametersand many more things

How did Mendeleev arrange the known element in his periodic table?

Description : How did Mendeleev arrange the known element in his periodic table?

Last Answer : He arranged the elements in the increasing order of their atomicmasses and repeating periodic properties.

What is Name an element in the periodic table that you would expect to chemically similar to sulfur?

Description : What is Name an element in the periodic table that you would expect to chemically similar to sulfur?

Last Answer : Need answer

How did Mendeleev arrange the known element in his periodic table?

Description : How did Mendeleev arrange the known element in his periodic table?

Last Answer : He arranged the elements in the increasing order of their atomicmasses and repeating periodic properties.

The first element on the periodic table of elements is hydrogen?

Description : The first element on the periodic table of elements is hydrogen?

Last Answer : is it true or false

Helium (He), neon (Ne) and argon (Ar) are all colorless, odorless gases with low chemical reactivity. Based on the periodic table, which other element would also have those same properties?

Description : Helium (He), neon (Ne) and argon (Ar) are all colorless, odorless gases with low chemical reactivity. Based on the periodic table, which other element would also have those same properties?

Last Answer : Helium

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?

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

Which is the heaviest element in the periodic table?

Description : Which is the heaviest element in the periodic table?

Last Answer : who introduced the first Periodic Table

Which is the heaviest element in the periodic table?

Description : Which is the heaviest element in the periodic table?

Last Answer : who introduced the first Periodic Table

First element in the periodic table?

Description : First element in the periodic table?

Last Answer : Hydrogen

(a). Which is largest in size- Cu+ , Cu+2, Cu and why? (b). which element in the periodic table has the highest ionization enthalpy? (c). Which element is more metallic in the periodic table.?

Description : (a). Which is largest in size- Cu+ , Cu+2, Cu and why? (b). which element in the periodic table has the highest ionization enthalpy? (c). Which element is more metallic in the periodic table.?

Last Answer : Ans. (a). Cu is largest due to less effective nuclear charge. It has 29 electrons, 29 protons, Cu+ has 28 electrons and 29 protons, Cu2+ has 27 electrons and 29 protons. (b). He has highest ionization enthalpy. (c). Mg is more metallic due to lower ionization energy

On going down in a group in the periodic table, the metallic nature of element

Description : On going down in a group in the periodic table, the metallic nature of element

Last Answer : increases.

The element which is the most reactive of all elements in the periodic table is

Description : The element which is the most reactive of all elements in the periodic table is

Last Answer : fluorine.

What is the first element in the periodic table? A. Hydrogen (Answer) B. Helium C. Nitrogen D. Carbon

Description : What is the first element in the periodic table? A. Hydrogen (Answer) B. Helium C. Nitrogen D. Carbon

Last Answer : A. Hydrogen (Answer)

A sulphate salt of group 2 element of the periodic table is white ,soft substance which can be moulded into different shapes by making its dough.Identify the salt . (a) CaSO4.1/2 H2O (b) CaSO4.2H2O (c) 2CaSO4. 1⁄2 H2O (d)CaSO4

Description : A sulphate salt of group 2 element of the periodic table is white ,soft substance which can be moulded into different shapes by making its dough.Identify the salt . (a) CaSO4.1/2 H2O (b) CaSO4.2H2O (c) 2CaSO4. 1⁄2 H2O (d)CaSO4

Last Answer : (a) CaSO4.1/2 H2O

Within a given period of the periodic table, the element with the lowest ionization energy is: w) transition metal x) alkali metal y) halogen z) noble gas

Description : Within a given period of the periodic table, the element with the lowest ionization energy is: w) transition metal x) alkali metal y) halogen z) noble gas

Last Answer : ANSWER: X -- ALKALI METAL

Name the chemical element that is eleventh in the Lanthanide Series in the periodic table. Because of the metal's high thermal-neutron-absorption cross section, it has been of much interest in terms of use in nuclear reactor hardware. The chemical symbol for this element is Er.

Description : Name the chemical element that is eleventh in the Lanthanide Series in the periodic table. Because of the metal's high thermal-neutron-absorption cross section, it has been of much interest in terms of use in nuclear reactor hardware. The chemical symbol for this element is Er.

Last Answer : ANSWER: ERBIUM

A gaseous organic compound that is best known for its use in preservative solutions has the chemical formula HCHO (read: H - C - H CHEM-92; Short Answer: Give me the name and atomic number of the element I am thinking about. It occupies the same column in the periodic table as selenium. Under standard conditions of temperature and pressure this element is a clear, odorless gas. This element is one of the essential ingredients in the burning process.

Description : A gaseous organic compound that is best known for its use in preservative solutions has the chemical formula HCHO (read: H - C - H CHEM-92; Short Answer: Give me the name and atomic number ... element is a clear, odorless gas. This element is one of the essential ingredients in the burning process.

Last Answer : ANSWER: OXYGEN ATOMIC NUMBER = 8

The element I am thinking about has several interesting characteristics. It occupies the same column in the periodic table as lead. Resistors which are commonly found in electronic circuits are often made out of this element. In addition, in one of its forms, this element is one of the hardest substances on earth. What element am I thinking about?

Description : The element I am thinking about has several interesting characteristics. It occupies the same column in the periodic table as lead. Resistors which are commonly found in electronic circuits are often made out ... element is one of the hardest substances on earth. What element am I thinking about? 

Last Answer : ANSWER: CARBON

The element of the audit planning process most likely to be agreed upon with the client before implementation of the audit strategy is the determination of the a. Procedures to be undertaken to discover litigation, claims, and assessments. b. Timing of inventory observation procedures to be performed. c. Evidence to be gathered to provide asufficient basis for the auditor's opinion.d. Pending legal matters to be included inthe inquiry of the client's attorney.

Description : The element of the audit planning process most likely to be agreed upon with the client before implementation of the audit strategy is the determination of the a. Procedures to be undertaken to discover ... opinion. d. Pending legal matters to be included in the inquiry of the client's attorney.

Last Answer : Timing of inventory observation procedures to be performed

To all chemists: What sort of compound would dissolve clothing, yet not at all react with skin and hair?

Description : To all chemists: What sort of compound would dissolve clothing, yet not at all react with skin and hair?

Last Answer : Lots of moths and larva can eat clothes and leave skin and hair alone. Biology not chemistry. I hope it helps. Have fun making a slime monster.

Chemists or fans of chemistry out there: Which chemist on the radio/TV etc. do you like?

Description : Chemists or fans of chemistry out there: Which chemist on the radio/TV etc. do you like?

Last Answer : I’d have to admit Albert Hofmann stands out. I wish his discovery had been allowed to be researched professionally. And if ethno-botany counts, then Terrence McKenna tops my list because of his contributions to psilocybin and dimethyltriptamine research.

Calling all Chemists . . . what the Hell happened? (details inside)

Description : Calling all Chemists . . . what the Hell happened? (details inside)

Last Answer : I know the following. Garlic contains lots of sulfer. Sulfer will combine with copper to form copper sulfate which is aquamarine. Some cooking utensils or pots and pans that are copper will do that. ... Are you sure it was garlic and not some alien product like in Invasion of the Body Snatchers?

Fellow fluther chemists, and/or machinists, how would you solve this?

Description : Fellow fluther chemists, and/or machinists, how would you solve this?

Last Answer : answer:Depending on how sharp the curves are in the tube you might be able to get the rest of the blockage out with a power drill and the proper bit and speed using a flexible shaft attachment similar to ... want to tape some heavy guage wire to it so you have more control. Anyway, just a thought.

Kitchen chemists: Will this cookie recipe end in disaster (see details please)

Description : Kitchen chemists: Will this cookie recipe end in disaster (see details please)

Last Answer : Wy can’t you add the remaining softened butter now? Just mix gently with the chips in.

Any chemists out there?

Description : Any chemists out there?

Last Answer : answer:Many elements do. The energy required to remove a single electron from the highest occupied energy level is called the first ionization energy. The energy needed to remove a second electron from the ... ) is increasing so the electrons are held more tightly. Does that clear a few things up?

For Microbiologists, Chemists, Researchers – Can you think of a use for this material in your work?

Description : For Microbiologists, Chemists, Researchers – Can you think of a use for this material in your work?

Last Answer : Im not an expert but Ive got a feeling that its probably got a very good use in nanotechnology in some way. Is the inside hollow? Might be good for holding micro bacteria or Viruses.

Two chemists walk into a bar. One of them orders h20. The other one wants h2o too. What happens to the other one? -Riddles

Description : Two chemists walk into a bar. One of them orders h20. The other one wants h2o too. What happens to the other one? -Riddles

Last Answer : He dies because he drank hydrogen peroxide.

What were the chemists in medieval Arabia called ?

Last Answer : Chemistry researchers in medieval Arabia were called alchemists.

Why Do Chemists Need To Invent A New Counting Unit?

Description : Why Do Chemists Need To Invent A New Counting Unit?

Last Answer : Feel Free to Answer