1st noble gas group in the periodic table?

1st noble gas group in the periodic table?
by

1 Answer

Answer :

Helium
by

Related questions

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 elements present in the 1st Group of the Periodic Table

Description : Name the elements present in the 1st Group of the Periodic Table 

Last Answer :  lithium, sodium, potassium, rubidium, caesium and francium. They are collectively known as the alkali metals. 

Which of the following is the correct sequence of the noble gases in their in the periodic table ?

Description : Which of the following is the correct sequence of the noble gases in their in the periodic table ?

Last Answer : Which of the following is the correct sequence of the noble gases in their in the periodic table ? A. Ar, He, Kr, ... Xe, Rn D. He, Ne, Ar, Kr, Xe, Rn

Where are the noble gases are found on the periodic table?

Description : Where are the noble gases are found on the periodic table?

Last Answer : It is found in group 18 (the group on the extreme right)

What are the noble gases in the periodic table?

Description : What are the noble gases in the periodic table?

Last Answer : Helium, Neon, Argon and if another Krypton.

What are the noble gases in the periodic table?

Description : What are the noble gases in the periodic table?

Last Answer : Helium, Neon, Argon and if another Krypton.

(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.

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.

Taking first period and 17 th group of the periodic table, write gradation of properties with respect to the following: a) atomic size b) Ionisation energy c) electro positivity and electro negativity.

Description : Taking first period and 17 th group of the periodic table, write gradation of properties with respect to the following: a) atomic size b) Ionisation energy c) electro positivity and electro negativity.

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.

List the elements of 15 th group of the periodic table. Name the distinct metals and non-metals of the group.

Description : List the elements of 15 th group of the periodic table. Name the distinct metals and non-metals of the group.

Last Answer : Nitrogen and phosphorous are non-metals. Arsenic and Antimony are metalloids, Bismuth is a metal.

Nitrogen (atomic number 7) and Phosphorous (atomic number 15) belong to group 15 of the periodic table. Which of these will be more electro negative? Why?

Description : Nitrogen (atomic number 7) and Phosphorous (atomic number 15) belong to group 15 of the periodic table. Which of these will be more electro negative? Why?

Last Answer : Nitrogen will be more electro negative as it decreases down the group.

What are rows in Periodic table called? A. Period (Answer) B. Group C. Verticals D. Perpendiculars

Description : What are rows in Periodic table called? A. Period (Answer) B. Group C. Verticals D. Perpendiculars

Last Answer : A. Period (Answer)

What are Columns in Periodic table called? A. Period B. Group (Answer) C. Verticals D. Perpendiculars

Description : What are Columns in Periodic table called? A. Period B. Group (Answer) C. Verticals D. Perpendiculars

Last Answer : B. Group (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

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 .

Which group of periodic table have large negative energy of activation ?

Description : Which group of periodic table have large negative energy of activation ?

Last Answer : Which group of periodic table have large negative energy of activation ? A. Alkali metal B. Zero group C. Halogen family D. Alkaline earth metal

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 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

a. 1s^2  b. 1s^22s^22p^6 In which group and period of the periodic table they are placed?

Description : a. 1s^2  b. 1s^22s^22p^6 In which group and period of the periodic table they are placed?

Last Answer : The electronic configuration of some elements are given below : a. 1s2 b. 1s22s22p6 In ... and period of the periodic table they are placed?

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

La belongs to group 3 while Hg belongs to group 12 and both belong to period 6 of the periodic table.

Description : La belongs to group 3 while Hg belongs to group 12 and both belong to period 6 of the periodic table.

Last Answer : La belongs to group 3 while Hg belongs to group 12 and both belong to period 6 of the ... from La to Hg together using orbital notation method.

What Group is Pb (lead) in click for the periodic table?

Description : What Group is Pb (lead) in click for the periodic table?

Last Answer : Lead is in the group 14 of the Periodic Table.

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

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.

What is group names of periodic table?

Description : What is group names of periodic table?

Last Answer : Group names of Periodic Table: alkali metals, alkaline earth metals, scandium-titanium-vanadium-chromium-manganese-iron-cobalt-nickel-zinc-boron-carbon groups, pnictogens, chalcogens, halogens, noble gases.

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

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.

What is group names of periodic table?

Description : What is group names of periodic table?

Last Answer : Group names of Periodic Table: alkali metals, alkaline earth metals, scandium-titanium-vanadium-chromium-manganese-iron-cobalt-nickel-zinc-boron-carbon groups, pnictogens, chalcogens, halogens, noble gases.

Magnesium and calcium are in the same group on the periodic table. Which sentence best explains why they have similar properties?

Description : Magnesium and calcium are in the same group on the periodic table. Which sentence best explains why they have similar properties?

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

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.

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

Elements present in the 2nd Group of the Periodic Table are also called ?

Description : Elements present in the 2nd Group of the Periodic Table are also called ?

Last Answer : Ans alkaline earth metals

Name the elements present in the 2nd Group of the Periodic Table:

Description : Name the elements present in the 2nd Group of the Periodic Table:

Last Answer : Ans beryllium, magnesium, calcium, strontium, barium and radium

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

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

Last Answer : First group elements (alkali metals) 

Name the elements present in the 2nd Group of the Periodic Table:

Description : Name the elements present in the 2nd Group of the Periodic Table: 

Last Answer : beryllium, magnesium, calcium, strontium, barium and radium. These elements with the exception of beryllium are commonly known as the alkaline earth metals. 

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

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

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

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 is the family name given to the elements in group 1A of the periodic table?

Description : What is the family name given to the elements in group 1A of the periodic table?

Last Answer : ANSWER: ALKALI METALS

The elements in group 1A of the periodic table are called: w) halogens x) alkaline earths y) alkali metals z) rare earths

Description : The elements in group 1A of the periodic table are called: w) halogens x) alkaline earths y) alkali metals z) rare earths

Last Answer : ANSWER: Y -- ALKALI METALS

In the periodic table, which of the following identifies a horizontal row? w) period x) group y) family z) series

Description : In the periodic table, which of the following identifies a horizontal row? w) period x) group y) family z) series

Last Answer : ANSWER: W -- PERIOD

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

Why are noble gases placed in a separate group?

Description : Why are noble gases placed in a separate group?

Last Answer : Nobel gases are very unreactive. So, they are placed in a separate group.

Give reason: Elements of group 18 or group zero are called inert or noble gases.

Description : Give reason: Elements of group 18 or group zero are called inert or noble gases.

Last Answer : Elements of group 18 do not form chemical bond on their own with other elements as they have completed shells of electrons. They have no tendency to gain or lose electrons. Hence they are most un-reactive

Noble gases are group of elements which exhibit very :

Description : Noble gases are group of elements which exhibit very :

Last Answer : Noble gases are group of elements which exhibit very : A. High chemical activity B. Much ... C. Maximum electronegativity D. Low chemical activity

What is the most active group of nonmetals noble gases alkaline earth halogens alkali metals?

Description : What is the most active group of nonmetals noble gases alkaline earth halogens alkali metals?

Last Answer : The most active metals are alkali metals.The most active nonmetals are halogens.

Who has the most active group of nonmetals noble gases alkaline earth halogens alkali metals?

Description : Who has the most active group of nonmetals noble gases alkaline earth halogens alkali metals?

Last Answer : Kevin

Why are 18 group elements called noble gases?

Description : Why are 18 group elements called noble gases?

Last Answer : According to the classical shell model for electrons, the group 18 elements have a fully filled outer shell, rendering them inert to most chemical reactions (little tendency to participate in chemical reactions ). So they are called noble or inert gases

Why are 18 group elements called noble gases?

Description : Why are 18 group elements called noble gases?

Last Answer : According to the classical shell model for electrons, the group 18 elements have a fully filled outer shell, rendering them inert to most chemical reactions (little tendency to participate in chemical reactions ). So they are called noble or inert gases