CHEMISTRY HIGH SCHOOL

The most stable group of elements on the periodic table is the?A) halogens
B) noble gases
C) alkali earth metals
D) alkaline earth metals

Answers

Answer 1
Answer:

The most stable because they can contain the most valence electrons in their outer shell. The correct option is B.

Thus, The group of elements on the periodic table known as noble gases, commonly referred to as inert gases, is thought to be the most stable.

They are radon (Rn), krypton (Kr), xenon (Xe), neon (Ne), helium (He), and argon (Ar). Noble gases are extremely stable and less likely to combine chemically with other elements because they contain entire valence electron shells.

Their full electron configurations, which result in low reactivity, are the cause of this stability.

Thus, The most stable because they can contain the most valence electrons in their outer shell. The correct option is B.

Learn more about Valence electrons, refer to the link:

brainly.com/question/31264554

#SPJ3
Answer 2
Answer: B) Noble gases
Most stable because they have the maximum number of valence electrons their outer shell can hold

Related Questions

A solution is considered basic or alkaline if its pH is _________ 7.A. equal toB. less thanC. greater than
What physical property of an element determines whether it acquires a positive or negative partial charge when participating in a polar covalent bond?
All atoms try to achieve---------------(minimum energy,stable energy,maximum energy,covalent energy)
The density of aluminum is 2.70 g/cm3. What is the mass of 235 cm3 of aluminum? 634.5 g635 g635 g/cm3634.5 ml
How many nitrogen atoms are present in calcium nitrate, Ca(NO3)2? A) 6. B) 3. C) 2. D) 1

How does the rule of zero charge help you predict the formula of an ionic compound?

Answers

Overall the ionic compound cannot be charged, so all charges of the ions must be balanced. This means if you know the charge of 1 ion (E.G. Ca2+ ion) and you know the charge of the other ion (E.G. Cl1-) then you can work out that to make the overall charge 0, there must be double the amount of chlorine ions than calcium ions present. From this, you can work out the formula must be CaCl2. 

Discuss the function of a buffer. How will pH change when small amounts of acids or bases are added to the buffer solution?

Answers

Buffer solution is a blend that has the ability to prevent the pH of the solution from undergoing large variations. It is formed by a weak acid or base, and a salt of that acid or base.
Thus, the following species exist in this buffer solution:
 
H2CO3: present in great quantity, therefore, being a weak acid, it suffers little ionization;
H +: from the ionization of H2CO3;
HCO3-: also present in high quantity, from ionization of H2CO3 and dissociation of salt (NaHCO3);
Na +: from ionization of NaHCO 3;
If this solution is added a small concentration of acid, its ionization will occur, generating H + cations, which will react with the HCO3- anions present in the medium, giving rise to non-ionized carbonic acid. There is no change in pH.
If a base is added, OH- anions will be generated. These ions combine with the H + cations from the ionization of H2CO3. Thus, the OH- anions are neutralized, maintaining the pH of the medium.

To better understand the annex follows:

Is the following a chemical change or a physical change? A pencil is sharpened in a pencil sharpener, leaving behind shaving. Physical Change Chemical Change

Answers

This is an example of physical change, because the pencil's chemical composition does not change.
*Physical Change.*
A physical change in a substance doesn't change what the substance is.
A Chemical change, there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.

Which statement explains why low temperature and high pressure are required to liquefy chlorine gas?(1) Chlorine molecules have weak covalent bonds.
(2) Chlorine molecules have strong covalent bonds.
(3) Chlorine molecules have weak intermolecular forces of attraction.
(4) Chlorine molecules have strong intermolecular forces of attraction.

Answers

The correct answer is option 2. Chlorine gas molecules are held together by strong covalent bonds. This type of bond requires an ample amount of energy in order to break it and turn gas into liquid. That is why, high pressure and low temperature is needed.

7 An atom that has 13 protons and 15 neutrons is an isotope of the element(1) nickel (3) aluminum
(2) silicon (4) phosphorus

Answers

an atoms identity is always defined by the number of protons and it is seen in the periodic table so if an atom has 13 protons it will be aluminum

Igneous rocks with an andesitic composition ________.

Answers

are found along volcanic island arcs
Other Questions
what would be the final volume when 2.20 M solution is made from 25.0 mL of a 12.0 M solution? plzz show work
Given the balanced equation representing a reaction:H+(aq) + OH-(aq) ==> H2O(l) + energyIn this reaction there is conservation of(1) mass, only(2) mass and charge, only(3) charge and energy, only(4) charge, energy, and mass
What is a metamorphic rock?
How does the electron cloud model describe electrons