The atomic number of an element Y is 16.(a) What must an atom of Y do to achieve the nearest inert gas electron arrangement? (b) Which inert gas is nearest to Y?
(a) An atom of Y must accept 2 electrons to achieve the nearest inert gas electron arrangement (2, 8, 8).
(b) Argon is the inert gas nearest to Y.
Related Articles The atomic number of an element A is 16.What must an atom of A do to achieve the nearest inert gas electron configuration?Which inert gas is nearest to A?
The atomic number of an element X is 12.(a) What must an atom of X do to attain the nearest gas electron configuration? (b) Which inert gas is nearest to X?
Draw the electron-dot structure of a hydrogen chloride molecule:(i) Which inert gas does the H atom in HCl resemble in electron arrangement? (ii) Which inert gas does the Cl atom in HCl resemble in electron arrangement?
What is inert gas?
Which inert gas electron configuration do the Cl atoms in Cl2 molecule resemble? What is this electron configuration?
Explain why an inert gas like Argon is filled in bulbs.
An element X of atomic number 12 combines with an element Y of atomic number 17 to form a compound XY2. State the nature of chemical bond in XY2 and show how the electron configurations of X and Y change in the formation of this compound.
A liquid compound X of molecular mass 18 u can be obtained from a number of natural sources. All the animals and plants need liquid X for their survival. When an electric current is passed through 200 grams of pure liquid X under suitable conditions, then 178 grams of gas Y and 22 grams of gas Z are produced. Gas Y is produced at the positive electrode whereas gas Z is obtained at the negative electrode. moreover, gas Y supports combustion whereas gas Z burns itself causing explosions.(a) Name (i) liquid X (ii) gas Y, and (iii) gas Z.(b) What is the ratio of the mass of element Z to the mass of element Y in the liquid X?(c) Which law of chemical combination is illustrated by this example ?(d) Name two sources of liquid X.(e) State an important use of Y in our life.
An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a divalent halide.(a) Where in the periodic table are elements X and Y placed?(b) Classify X and Y as metal (s), non-metal (s) or metalloid (s).(c) What will be the nature of oxide of element Y? Identify the nature of bonding in the compound formed.(d) Draw the electron dot structure of the divalent halide.
The number of electrons in an ion Y2+ is 10. The atomic number of element Y is most likely to be :(a) 8 (b) 12 (c) 10 (d) 14
(a) Describe Bohr's model of the atom. How did Neils Bohr explain the stability of atom?(b) An element has an atomic number of 11 and its mass number is 23. What is the arrangement of electrons in the shells? State nuclear composition of an atom of the element.
The metal X reacts with dilute hydrochloric acid to form a gas Y. The metal X also reacts with sodium hydroxide solution (on heating) to form the same gas Y. When a lighted matchstick is applied, this gas burns by producing a ‘pop’ sound.(a) Name two metals which could behave like X(b) Name the gas Y
Four elements A, B, C, and D have the following electron arrangements in their atoms:A 2,8,6 B 2,8,8 C 2,8,8,1 D 2,8,7 (a) What type of bond is formed when element C combines with element D? (b) Which element is an inert gas? (c) What will be the formula of the compound between A and C?
Write the distribution of electrons in an atom of element whose atomic number is 18. What is special about the outermost electron shell (or valence shell) of the atom of this element?
A substance X which is used as an antacid reacts with dilute hydrochloric acid to produce a gas Y which is used in one type of fire-extinguisher. Name the substance X and gas Y. Write a balanced equation for the chemical reaction which takes place.
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