Is the Iron in ours bodies the same Iron on the periodic table of the elements?

Is the Iron in ours bodies the same Iron on the periodic table of the elements?
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Yep, good ol’ Fe. Here’s the molecular structure of hemoglobin
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Iron which resembles Cobalt and Nickel in properties has been placed far away from these elements. This was one of the limitations of : (1) Modern periodic table (2) Newland's law of octaves (3) Dobereiner's triads (4) Mendeleev's periodic table

Description : Iron which resembles Cobalt and Nickel in properties has been placed far away from these elements. This was one of the limitations of : (1) Modern periodic table (2) Newland's law of octaves (3) Dobereiner's triads (4) Mendeleev's periodic table

Last Answer : (2) Newland's law of octaves Explanation: Among the major limitations of Newlands Law of Octaves, some similar elements have been separated from one another while some dissimilar elements have been placed in the same column.

(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 table. How do the following properties of M and N vary? Sizes of their atoms Their metallic characters Their valencies in forming oxides Molecular formulae of their chlorides -Science

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.

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

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.

Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same (A) Period increases (B) Period decreases (C) Group increases (D) Both 'b' & 'c'

Description : Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same (A) Period increases (B) Period decreases (C) Group increases (D) Both 'b' & 'c'

Last Answer : Option D

Which one of the following statements concerning elements in the Periodic Table is correct? A Elements of the same group all have the same number of electrons in the outermost occupied electron shell. B Elements of Group 16 occur as cations in ionic compounds. C Oxides of elements in Groups 16 and 17 are basic. D The halogens (Group 17) are all gases at room temperature. E The Group 13 elements are all metals.

Description : Which one of the following statements concerning elements in the Periodic Table is correct? A Elements of the same group all have the same number of electrons in the outermost occupied electron shell. B ... (Group 17) are all gases at room temperature. E The Group 13 elements are all metals.

Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

What is the periodic table of elements?

Description : What is the periodic table of elements?

Last Answer : Answer: The periodic table of elements is a chart that arranges all known chemical elements in order of increasing atomic number, based on their electron configurations and chemical properties. ... as it allows scientists to predict the properties and behavior of different elements and compounds.

Do we have (or will have soon) a periodic table of sub-atomic elements?

Description : Do we have (or will have soon) a periodic table of sub-atomic elements?

Last Answer : http://www.bing.com/images/search?q=subatomic+elements+chart&qpvt=sub+atomic+elements+chart&qpvt=sub+atomic+elements+chart&FORM=IGRE ?

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.

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.

(a) Why do we classify elements? (b) What were the two criteria used by Mendeleev in creating his Periodic Table? ... Justify your answer. -Chemistry 9th

Description : (a) Why do we classify elements? (b) What were the two criteria used by Mendeleev in creating his Periodic Table? ... Justify your answer. -Chemistry 9th

Last Answer : (a) It is done so as to study the properties of elements conveniently. (b) Increasing order of atomic mass and similarities in chemical properties (especially nature and formulae of oxide and hydride formed). ... at that time. (e) They will be kept at same slot as they have same chemical properties.

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 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

In the second and third stages of the periodic table, after how many elements does religion repeat ?

Description : In the second and third stages of the periodic table, after how many elements does religion repeat ?

Last Answer : In the case of the second and third stages of the periodic table, religion repeats itself after the eight elements.

What is the number of elements in the zero group of the periodic table ?

Description : What is the number of elements in the zero group of the periodic table ?

Last Answer : The number of elements in the zero group of the periodic table is 6 .

How many elements are there in the sixth stage of the periodic table ?

Description : How many elements are there in the sixth stage of the periodic table ?

Last Answer : There are 32 elements in the sixth stage of the periodic table .

What is the number of elements in a periodic table made by Lavoisier ?

Description : What is the number of elements in a periodic table made by Lavoisier ?

Last Answer : Elements 33 in the periodic table created by Lavoisier .

In what century were most of the elements of periodic table discovered ?

Description : In what century were most of the elements of periodic table discovered ?

Last Answer : Most of the elements of the periodic table were discovered in the eighteenth century.

How many elements did Mendeleev introduce the modern periodic table ?

Description : How many elements did Mendeleev introduce the modern periodic table ?

Last Answer : Mendeleev introduced the modern periodic table with 67 elements.

On what basis are the elements in the periodic table divided ?

Description : On what basis are the elements in the periodic table divided ?

Last Answer : The elements are divided on the basis of religion.

What is a Periodic Table of Elements ?

Description : What is a Periodic Table of Elements ?

Last Answer : By classifying the elements of the same type of religion in the same category , replacing all the discovered elements , the current table of elements is called the periodic table of elements.

The following statements concern elements in the periodic table. Which of the following is true ?

Description : The following statements concern elements in the periodic table. Which of the following is true ?

Last Answer : The following statements concern elements in the periodic table. Which of the following is true ? ... of +5 oxidation state increases down the group.

In which group of elements of the modern periodic table are halogen placed ?

Description : In which group of elements of the modern periodic table are halogen placed ?

Last Answer : In which group of elements of the modern periodic table are halogen placed? a. 17 b. 6 c. 4 d. 2

How are elements organized on the periodic table Select all that apply.?

Description : How are elements organized on the periodic table Select all that apply.?

Last Answer : Need answer

What did Moseley use to reorder the elements of Mendeleev periodic table?

Description : What did Moseley use to reorder the elements of Mendeleev periodic table?

Last Answer : Henry Moseley discovered a relation between X-ray spectra and the atomic number of chemical elements.

What two elements in the periodic table have properties in common with Calcium?

Description : What two elements in the periodic table have properties in common with Calcium?

Last Answer : Be, Mg, Ca, Sr, Ba, Ra. All the elements in that column haveproperties similar to each other.

What are the green elements on the periodic table called?

Description : What are the green elements on the periodic table called?

Last Answer : The elements in the center section are called transitionelements.

How did Mendeleev arrange the known elements in this periodic table?

Description : How did Mendeleev arrange the known elements in this periodic table?

Last Answer : Feel Free to Answer

What groups of elements should have very different chemical properties in the periodic table?

Description : What groups of elements should have very different chemical properties in the periodic table?

Last Answer : Feel Free to Answer

Are the elements on the periodic table organized by their atomic number?

Description : Are the elements on the periodic table organized by their atomic number?

Last Answer : Yes. The elements are arranged in increasing order of atomic number.

What is the importance of capital and lowercase on the periodic table of the elements?

Description : What is the importance of capital and lowercase on the periodic table of the elements?

Last Answer : Feel Free to Answer

Is this statement true or false The periodic table of the elements is now complete because there are no more elements to add.?

Description : Is this statement true or false The periodic table of the elements is now complete because there are no more elements to add.?

Last Answer : Need answer

Are the elements on the periodic table organized by their atomic number?

Description : Are the elements on the periodic table organized by their atomic number?

Last Answer : Yes. The elements are arranged in increasing order of atomic number.

What are about three fourths of the elements on the periodic table?

Description : What are about three fourths of the elements on the periodic table?

Last Answer : They are metals.

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

What structural feature of their atoms is characteristic of elements in a group of the periodic table?

Description : What structural feature of their atoms is characteristic of elements in a group of the periodic table?

Last Answer : The Periodic Table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.

Name all of the elements on the periodic table. I dare someone.?

Description : Name all of the elements on the periodic table. I dare someone.?

Last Answer : Banana

What are the types of elements in the periodic table?

Description : What are the types of elements in the periodic table?

Last Answer : The main distinction is into metals and non-metals.

Who discovered the elements in the periodic table?

Description : Who discovered the elements in the periodic table?

Last Answer : In the prehistoric times;impossible to know: gold or silver, Mercury or copper, sulfur or carbon.

What are the elements in the periodic table based on?

Description : What are the elements in the periodic table based on?

Last Answer : Atomic Number

Name all of the elements on the periodic table. I dare someone.?

Description : Name all of the elements on the periodic table. I dare someone.?

Last Answer : Banana

What are the types of elements in the periodic table?

Description : What are the types of elements in the periodic table?

Last Answer : The main distinction is into metals and non-metals.

Who discovered the elements in the periodic table?

Description : Who discovered the elements in the periodic table?

Last Answer : In the prehistoric times;impossible to know: gold or silver, Mercury or copper, sulfur or carbon.

What are the elements in the periodic table based on?

Description : What are the elements in the periodic table based on?

Last Answer : Atomic Number

What are the first 20 elements in the periodic table?

Description : What are the first 20 elements in the periodic table?

Last Answer : HydrogenHeliumLithiumBerylliumBoronCarbonNitrogenOxygenFluorineNeonSodiumMagnesiumAluminumSiliconPhosphorousSulphurChlorineArgonPotassiumCalciumHope this helped :)

The names of the scientists, Newlands, Mendeleev and Meyer are associated with the development of (a) Atomic structure (b) Metallurgy (c) Periodic table of elements (d) Discovery of elements

Description : The names of the scientists, Newlands, Mendeleev and Meyer are associated with the development of (a) Atomic structure (b) Metallurgy (c) Periodic table of elements (d) Discovery of elements

Last Answer : Ans:(c)

In the periodic table of elements, on moving from left to right across a period, the atomic radius – (1) decreases (2) increases (3) remains unchanged (4) does not follow a definite pattern

Description : In the periodic table of elements, on moving from left to right across a period, the atomic radius – (1) decreases (2) increases (3) remains unchanged (4) does not follow a definite pattern

Last Answer : (1) decreases Explanation: The atomic radius is the distance from the atomic nucleus to the outermost stable electron orbital in an atom that is at equilibrium. It tends to decrease across a period from ... usually increases while going down a group due to the addition of a new energy level (shell).

Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic Table? (1) Scandium (2) Gallium (3) Titanium (4) Germanium

Description : Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic Table? (1) Scandium (2) Gallium (3) Titanium (4) Germanium

Last Answer : (2) Gallium

Which period have the largest number of elements in the periodic table?

Description : Which period have the largest number of elements in the periodic table?

Last Answer : The sixth period

The horizontal rows of elements in the periodic table are called?

Description : The horizontal rows of elements in the periodic table are called?

Last Answer : Periods