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

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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 : 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

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 : 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.

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.

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

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

Description : Which group elements show very low ionization enthalpy in the periodic table?

Last Answer : First group elements (alkali metals) 

Description : The periodic law states that the properties of elements will repeat when the elements are arranged by _______.?

Last Answer : increasing atomic number

Description : in addition to properties of elements, list at least two other things or events that are periodic?

Last Answer : hujhhgbhybjbujh

Description : in addition to properties of elements, list at least two other things or events that are periodic?

Last Answer : hujhhgbhybjbujh

Description : This scientist gave the law- ‘Properties of elements are a periodic function of their atomic number.’ This property of the fundamental importance of atomic number was discovered by- (1) Johann Wolfgang Döbereiner (2) John Newlands (3) Dmitri lvanovich Mendeléev (4) Henry Moseley

Last Answer : (4) Henry Moseley Explanation: In 1913, Henry Moseley showed that the atomic number of an element is a more fundamental property than its atomic mass as described below.

Description : The Russian chemist who said that the properties of elements are periodic function of their atomic mass is

Last Answer : Dmitri Mendeleev.

Description : How many groups are there in the periodic table ?

Last Answer : There are 18 groups in the periodic table .

Description : Ozone belongs to which groups of the periodic table?

Last Answer : Ozone belongs to which groups of the periodic table? A. IVA B. VA C. VIA D. VIIA

Description : What are the names of the 8 groups in the periodic table?

Last Answer : alkali metals, alkali earth metals, halogens, noble gases, transition metals and there are only 5 not 8

Description : What are the names of the 8 groups in the periodic table?

Last Answer : alkali metals, alkali earth metals, halogens, noble gases, transition metals and there are only 5 not 8

Description : How many groups and periods are there in periodic table?

Last Answer : 18 groups and 7 Periods

Description : How many groups are there in the mod- ern periodic table?

Last Answer : Eighteen

Description : How many groups and periods are found in long form periodic table?

Last Answer : Ans: 7 periods 18 groups

Description : How many periods and groups are there in the modern periodic table?

Last Answer : In the modern periodic table there are 7 periods and 18 groups.

Description : What are periods and groups in the modern periodic table?

Last Answer : The horizontal rows in the periodic table are called periods. The vertical columns in the periodic table are called groups.

Description : In the periodic table does a set of properties repeat from group to group?

Last Answer : No. The properties of elements repeat from row to row (period toperiod).The groups on the table are the columns.

Description : In the periodic table does a set of properties repeat from group to group?

Last Answer : No. The properties of elements repeat from row to row (period toperiod).The groups on the table are the columns.

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Last Answer : C. They both have two......

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Last Answer : The elements of 1 st period are hydrogen and helium. a) Atomic size of hydrogen is larger then that of helium because atomic size decreases across a period. b) Ionisation energy of helium ... higher as it increases down the group. Electro negativity of fluorine as it decreases down the group.

Description : The members of a homologous series have (a) The same physical properties (b) Different functional groups (c) The same chemical properties (d) Different methods of preparation

Last Answer : Ans:(c)

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.

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

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Last Answer : Yep, good ol’ Fe. Here’s the molecular structure of hemoglobin

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.

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.

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 : 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

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.

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 .

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 .

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 .

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.

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

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

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

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

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.

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.

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

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

Last Answer : Need answer

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.

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

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

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

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