The electronic configuration of an atom having atomic number '20' is?

The electronic configuration of an atom having atomic
number '20' is?
by

1 Answer

Answer :

2, 8, 8, 2
by

Related questions

The electronic configuration of an atom having atomic number `20' is – (1) 2, 8, 10 (2) 2, 6, 8, 4 (3) 2, 8, 8, 2 (4) 2, 10, 8

Description : The electronic configuration of an atom having atomic number `20' is – (1) 2, 8, 10 (2) 2, 6, 8, 4 (3) 2, 8, 8, 2 (4) 2, 10, 8

Last Answer : (3) 2, 8, 8, 2 Explanation: Electrons occupy shells around the outside of an atom. There can be up to two electrons in the first shell, up to eight in the second and up to eight in the third. A calcium atom (Ca) has electron structure 2,8,8,2.

The electronic configuration of an atom having atomic number ‘20’ is (1) 2, 8, 10 (2) 2, 6, 8, 4 (3) 2, 8, 8, 2 (4) 2, 10, 8

Description : The electronic configuration of an atom having atomic number ‘20’ is (1) 2, 8, 10 (2) 2, 6, 8, 4 (3) 2, 8, 8, 2 (4) 2, 10, 8 

Last Answer : 2, 8, 8, 2

Electronic configuration of Element Atomic number 20 is –

Description : Electronic configuration of Element Atomic number 20 is –

Last Answer : 2, 8, 8, 2

Write the electronic configuration of scandium having atomic number 21.

Description : Write the electronic configuration of scandium having atomic number 21.

Last Answer : Ans-Sc = [Ar]3d1 4S2

The cause of periodicity of properties (a) Increasing atomic radius (b) Increasing atomic weights (c) Number of electrons in the valency orbit (d) The recurrence of similar outer electronic configuration

Description : The cause of periodicity of properties (a) Increasing atomic radius (b) Increasing atomic weights (c) Number of electrons in the valency orbit (d) The recurrence of similar outer electronic configuration

Last Answer : Ans:(d)

Atoms of different elements have - (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configuration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Description : Atoms of different elements have - (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configuration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Last Answer : (3) different atomic number and different number of valence electrons Explanation: Each element's atoms have a different number of protons, neutrons, and electrons, which is why they have different ... Their reactivity also varies because of the number and activeness of the electrons in the atom.

Isotopes of an element have the same (A) Number of neutrons (B) Mass number (C) Electronic configuration (D) Atomic weight

Description : Isotopes of an element have the same (A) Number of neutrons (B) Mass number (C) Electronic configuration (D) Atomic weight

Last Answer : (C) Electronic configuration

Atoms of different elements have (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configu-ration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Description : Atoms of different elements have (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configu-ration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Last Answer : different atomic number and different number of valence electrons

Write the excited state electronic configuration of carbon atom.

Description : Write the excited state electronic configuration of carbon atom.

Last Answer : 1s , 2s 2px 2py 2pz

Write the electronic configuration of carbon atom when it is in ground state.

Description : Write the electronic configuration of carbon atom when it is in ground state.

Last Answer : The electronic configuration of carbon atom in ground state is 1s 2 , 2s 2 , 2p 2

How is the electronic configuration of an atom related to the period in the periodic table?

Description : How is the electronic configuration of an atom related to the period in the periodic table?

Last Answer : Periods are formed according to the way in which electrons get filled up in different shells and orbitals. For example first period of the table is completed when the first shell of the atom is completely filled up

How does the electronic configuration of an atom relate to its position in the modern periodic table?

Description : How does the electronic configuration of an atom relate to its position in the modern periodic table?

Last Answer : The group number of elements having up to two valence electrons is equal to the number of valence electrons. For example: Group 1 elements have 1 valence electron. Group 2 elements have 2 valence electrons. Group 13 elements have 3 valence electrons.

(3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of the atom, the electron configuration determines how it will bond, with what it will bond, and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.

Description : (3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of ... , and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.

Last Answer : Methyl phenyl ether can be obtained by reacting - (1) phenolate ions and methyl iodide (2) methoxide ions and bromobenzene (3) methanol and phenol (4) bromobenzene and methyl bromide

Isotopes of an element have different (A) Mass number (B) Electronic configuration (C) Nuclear charge (D) Chemical properties

Description : Isotopes of an element have different (A) Mass number (B) Electronic configuration (C) Nuclear charge (D) Chemical properties

Last Answer : (A) Mass number

Isotopes of an element have different (A) Mass number (B) Electronic configuration (C) Nuclear charge (D) Chemical properties

Description : Isotopes of an element have different (A) Mass number (B) Electronic configuration (C) Nuclear charge (D) Chemical properties

Last Answer : (A) Mass number

What is the ground-state configuration for Na+? The atomic atomic number for sodium is eleven.

Description : What is the ground-state configuration for Na+? The atomic atomic number for sodium is eleven.

Last Answer : ANSWER: 1S22S22p6

From the ground state, electronic configuration of the elements given below, pick up the one with highest value of second ionization energy:

Description : From the ground state, electronic configuration of the elements given below, pick up the one with highest value of second ionization energy:

Last Answer : From the ground state, electronic configuration of the elements given below, pick up the one with highest value of second ... D. `1s^(2)2s^(2)2p^(5)`

The noble gases have closed-shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of the lighter nob

Description : The noble gases have closed-shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of the lighter nob

Last Answer : The noble gases have closed-shell electronic configuration and are monoatomic gases under normal conditions. ... (C) unreactive D. (D) strongly basic

The noble gases have closed-shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of the lighter nob

Description : The noble gases have closed-shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of the lighter nob

Last Answer : The noble gases have closed-shell electronic configuration and are monoatomic gases under normal ... flammablity D. (D) high calorific value

For the correct assignment of electronic configuration of a complex, the valence bond theory often requires the measurement of

Description : For the correct assignment of electronic configuration of a complex, the valence bond theory often requires the measurement of

Last Answer : For the correct assignment of electronic configuration of a complex, the valence bond theory often ... activity C. magnetic moment D. dipole moment

Radioactivity is due to a) Stable electronic configuration b) Unstable electronic configuration c) Stable nucleus d) Unstable nucleus

Description : Radioactivity is due to a) Stable electronic configuration b) Unstable electronic configuration c) Stable nucleus d) Unstable nucleus

Last Answer : Radioactivity is due to a) Stable electronic configuration b) Unstable electronic configuration c) ... C. stable nucleus D. unstable nucleus

The noble gases have closed-shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of the lighter nob

Description : The noble gases have closed-shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of the lighter nob

Last Answer : The noble gases have closed-shell electronic configuration and are monoatomic gases under normal ... reducing C. unreactive D. strongly basic

Which has the same electronic configuration as of inert gas ?

Description : Which has the same electronic configuration as of inert gas ?

Last Answer : Which has the same electronic configuration as of inert gas ? A. `Ag^(3+)` B. `Cu^(2+)` C. `Pb^(4+)` D. `Ti^(4+)`

The electronic configuration of neon is

Description : The electronic configuration of neon is

Last Answer : The electronic configuration of neon is A. `1s^(2)2s^(2)2p^(6)` B. `1s^(2)` C. `2s^(2)` D. `1s^(2)2s^(2)2p^(2)`

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?

If the valence shell electronic configuration is ns^2 np^5, the element will belong to :

Description : If the valence shell electronic configuration is ns^2 np^5, the element will belong to :

Last Answer : If the valence shell electronic configuration is ns2 np5, the element will belong to : a. ... halogens c. alkaline earth metals d. actinides

What is the Electronic configuration of niobium?

Description : What is the Electronic configuration of niobium?

Last Answer : 1s2, 2s2, 2p6, 3s2, 3p6, 3d10, 4s2, 4p6, 4d4, 5s1, or [Kr] 4d4,5s1.

WHAT is the electronic configuration of Nb?

Description : WHAT is the electronic configuration of Nb?

Last Answer : Nb or niobium has the electron configuration of [Kr]4d45s1

WHAT is the electronic configuration of Nb?

Description : WHAT is the electronic configuration of Nb?

Last Answer : Nb or niobium has the electron configuration of [Kr]4d45s1

What is the electronic configuration of lead?

Description : What is the electronic configuration of lead?

Last Answer : The element lead (atomic number 82) has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p2 or simplified in the noble gas form as [Xe] 4f14 5d10 6s2 6p2

What is the electronic configuration of cerium?

Description : What is the electronic configuration of cerium?

Last Answer : [Xe]4f4

What is the electronic configuration of lead?

Description : What is the electronic configuration of lead?

Last Answer : The element lead (atomic number 82) has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p2 or simplified in the noble gas form as [Xe] 4f14 5d10 6s2 6p2

What is the electronic configuration of cerium?

Description : What is the electronic configuration of cerium?

Last Answer : [Xe]4f4

Radio activity is due to – (1) unstable nucleus (2) stable nucleus (3) stable electronic configuration (4) stable electronic configuration

Description : Radio activity is due to – (1) unstable nucleus (2) stable nucleus (3) stable electronic configuration (4) stable electronic configuration

Last Answer : (1) unstable nucleus Explanation: Radioactivity is caused by unstable nuclei trying to become stable by emitting particles and or energy. The nuclei of radioactive substances are unstable due to an unstable ratio of protons to neutrons.

The electronic configuration of carbon is

Description : The electronic configuration of carbon is

Last Answer : 1s , 2s 2p

The electronic configuration of silicon is

Description : The electronic configuration of silicon is

Last Answer : 1s , 2s 2p , 3s 3p .

2. Write the electronic configuration of silicon

Description : 2. Write the electronic configuration of silicon

Last Answer : The atomic number of silicon is 14 and its mass number is 28. Its electronic configuration 2 2 6 2 2

How elements are classified based on electronic configuration?

Description : How elements are classified based on electronic configuration?

Last Answer : Based on electronic configuration, all elements are grouped into four categories. They are ‘s block’, ‘p block’, ‘d block’ and ‘f block’ elements.

The electronic configuration of three elements X, Y and Z are X-2,8; Y-2,8,7 and Z-2,8,2‘Which of the given is correct. a) X is a metal b) Y is a metal c) Zis a non-metal d) Y is a non-metal and Z is a metal

Description : The electronic configuration of three elements X, Y and Z are X-2,8; Y-2,8,7 and Z-2,8,2‘Which of the given is correct. a) X is a metal b) Y is a metal c) Zis a non-metal d) Y is a non-metal and Z is a metal

Last Answer : d) Y is a non-metal and Z is a metal

Which group of elements have an outer electronic configuration of S-2-P-6?

Description : Which group of elements have an outer electronic configuration of S-2-P-6?

Last Answer : ANSWER: NOBLE GASES

Which of the following groups of elements have an OUTER ELECTRONIC configuration of S-2-P-2? w) halogens x) Nitrogen-Phosphorus Group y) Carbon-Silicon Group z) Boron-Aluminum Group

Description : Which of the following groups of elements have an OUTER ELECTRONIC configuration of S-2-P-2? w) halogens x) Nitrogen-Phosphorus Group y) Carbon-Silicon Group z) Boron-Aluminum Group

Last Answer : ANSWER: Y -- CARBON-SILICON GROUP

What is the electron configuration of an atom ?

Description : What is the electron configuration of an atom ?

Last Answer : The number of electrons in an atom is a unique number. The structure of which gives an idea of the properties of atoms. According to the laws of quantum mechanics, a certain number of electrons in an angle ... are as follows: (a) Pauli's Exclusion Principle ( b) Aufbau Principle ( c) Hund's Rule

What happens to an atom of fluorine (F) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?

Description : What happens to an atom of fluorine (F) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?

Last Answer : It accepts one electron.

Two sugars which differ from one another only in configuration around a single carbon atom are termed (A) Epimers (B) Anomers (C) Optical isomers (D) Stereoisomers

Description : Two sugars which differ from one another only in configuration around a single carbon atom are termed (A) Epimers (B) Anomers (C) Optical isomers (D) Stereoisomers

Last Answer : A

Two sugars which differ from one another only in configuration around a single carbon atom are termed (A) Epimers (B) Anomers (C) Optical isomers (D) Stereoisomers

Description : Two sugars which differ from one another only in configuration around a single carbon atom are termed (A) Epimers (B) Anomers (C) Optical isomers (D) Stereoisomers

Last Answer : (A) Epimers

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

Show diagrammatically the electron distributions in a sodium atom and a sodium ion and also give their atomic number. -Science

Description : Show diagrammatically the electron distributions in a sodium atom and a sodium ion and also give their atomic number. -Science

Last Answer : Atomic number of sodium (Z) =11 Mass number of sodium (A) = 23 Number of protons in the nucleus = 11 Number of neutrons in the nucleus =23-11 = 12 Number of electrons = 11 Electronic ... the electronic configuration is 2, 8(K, L). However, the number of protons and neutrons remains the same.

An atom has atomic number 12, what is its valency and name the element? -Chemistry 9th

Description : An atom has atomic number 12, what is its valency and name the element? -Chemistry 9th

Last Answer : Element with atomic number 12 is Magnesium (Mg). Electronic configuration of magnesium is 1s2 2s2 2p6 3s2. It has 2 e- in its outermost orbit and can donate these to form a stable octet. Hence, its valency is +2.

Draw the atomic structure of (i) an atom with same number of sub-atomic particles, (ii) an atom with same number of electrons in L and M shell. -Chemistry 9th

Description : Draw the atomic structure of (i) an atom with same number of sub-atomic particles, (ii) an atom with same number of electrons in L and M shell. -Chemistry 9th

Last Answer : (i) Oxygen Number of electrons = 8 Number of protons= 8 Number of neutron= 8 (ii) Argon Atomic number =18=2,8,8 No of electrons in L shell = 8 No of electrons in M shell = 8

What is the number of electrons in an atom of atomic number Z and mass number A? -Do You Know?

Description : What is the number of electrons in an atom of atomic number Z and mass number A? -Do You Know?

Last Answer : answer: