Which of the following is least likely to form bonds? helium hydrogen nitrogen oxygen

Answers

Answer 1

Answer:

Answer: Helium is least likely to form bonds.

Explanation:

Helium has the electronic configuration $1s^(2)$ . As the 1s sub-shell is completely filled so there is no need for helium to form bonds with other atoms.

Whereas, nitrogen has the electronic configuration $1s^(2) 2s^(2) 2p^(3)$ . As the p sub-shell is half filled, it has the tendency to accept more electrons. Therefore, nitrogen is more susceptible to form bonds as compared to helium.

Thus, it is concluded that helium is least likely to form bonds.

Answer 2

Answer: Helium as it's a nobel gas and therefore does not need to form any bonds to get a full shell of outer electrons (as its shell is already full) making it stable.

Related Questions

2. 7.5 g of potassium react with water to produce potassium hydroxide and hydrogen gas. Calculate the mass of potassium hydroxide produced. (8 points)
How many atoms are in 3.50 moles of calcium (Ca)?
Measuring Physical Properties Lab ReportInstructions: In the Physical Properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in Tiny World. Record your observations and test measurements in the lab report below in the areas shaded in purple. You will submit your completed report to your instructor. Student Name Instructor Date Lab Objectives In this lab you will: • help the aliens, called Tinyians, build the best house on their planet called Tiny World. • experiment with different building materials to collect data to see which ones best meet the criteria for building a home on Tiny World. • test each building material for density, thermal and electrical conductivity, flexibility, and magnetism. Background Research: You will need to gather background research from the virtual lab to form a good hypothesis. Read the Welcome to Tiny World part of the lab. Use the background information you learn to answer the questions below. Describe the gravity of Tiny World. Part 1: Describe the reason your house will need magnets. Describe the climate of Tiny World. Hypothesis: In this section, include the IF/THEN statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment. A If we use _______ to build the roof of the house, then the temperature inside the house will remain cooler. B If we use_______ to build the walls and floors of the house, then the temperature inside the house will remain cooler. C If we use ______ to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate. D If we use_______ to construct the latches on the windows and doors, then the magnetism will keep the latches secure. Part 2 Procedure: 1. You will test each building material for density, thermal and electrical conductivity, flexibility, and magnetism. 2. Record your observations in the data table provided below. 3. Repeat steps with all test materials. Data: Record the results of each of your physical property tests in the table below. Wood Clay Brick Iron Aluminum Copper Nickel Flexibility (?/10) Magnetism (number of paper clips) Thermal Conductivity (W/(m·K)) Electrical Conductivity (x107 S/m) Mass (g) 10g 10g 10g 10g 10g 10g Volume (cm3) Formula: L x W x H Density (g/cm3) Formula: D=M/V part 3 Conclusion Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words. 1 Using two to three sentences, summarize what you investigated and observed in this lab. 2 What was the independent variable in the lab? 3 What was the dependent variable in the lab? 4 Did each of your experiment results support, or fail to support your four hypotheses? A. B C. D. 5 Why do you think a building material's density is important when building homes or architectural structures? 6 Why wouldn’t you choose wood or aluminum for the latches on your house? 7 Which material has the highest thermal conductivity? 8 Which material has the highest electrical conductivity 9 Based on your data, explain why these materials have the highest thermal and electrical conductivity? 10 Think about where you live now or where you have lived in the past; use complete sentences to describe this environment and the weather.
How many different kinds of particles are there in the world? explain your answer.
5. Which quantities must be conserved in all chemical reactions?

The atomic number is the _____. atomic mass number of neutrons protons plus the neutrons number of protons

Answers

The atomic number of an atom is determined by the number of protons present in the atom that is the atomic number and number of protons are same for an atom. It is unique for every atom.

Atomic mass: It is nearly equals to the sum of mass of subatomic particles present in the atom that is sum of proton and neutron.

Number of neutrons: in an atom, the number of neutrons are always equal to the number of protons. If the number of neutrons are different for a number of proton then it is said be an isotope of that atom.

Protons plus neutrons: Sum of number of protons and number of neutrons is said to be the mass number of that atom.

Hence, the atomic number is the number of protons.

It's the number of protons.
The table of elements organizes the elements by their number of protons/the atomic number as the number of protons of an element is fixed, unlike the number of electrons and neutrons.

Balance the following oxidation-reduction reaction: Fe(s)+Na+(aq)→Fe2+(aq)+Na(s) Express the coefficients as integers separated by commas (e.g., 4,1,3,2, where 1 indicates the absence of a coefficient).

Answers

Answer:

The answer to your question is: 1, 2, 1, 2

Explanation:

1 Fe(s) + 2 Na⁺(aq) → 1 Fe²⁺(aq) + 2 Na(s)

Fe⁰ - 2e⁻ ⇒ Fe⁺² Oxidases

Na⁺ + 1 e⁻ ⇒ Na⁰ Reduces

1 x ( 1 Fe⁰ ⇒ 1 Fe⁺²) Interchange number of

2 x ( 2Na⁺ ⇒ 2 Na⁰ ) electrons

Final answer:

To balance the oxidation-reduction reaction Fe(s) + Na+(aq) → Fe2+(aq) + Na(s), follow these steps: balance atoms other than hydrogen and oxygen, balance hydrogen atoms, balance oxygen atoms, verify charges

Explanation:

To balance the oxidation-reduction reaction Fe(s) + Na+(aq) → Fe2+(aq) + Na(s), we need to balance the number of atoms for each element and the total charge on both sides of the reaction. Here's the step-by-step process:

First, balance the atoms other than hydrogen and oxygen. There is only one atom of Fe on each side, so this is already balanced.
Next, balance the hydrogen atoms. We have no hydrogen on the left side and one hydrogen on the right side, so we need to add a coefficient of 2 in front of Na(s): 2Na(s).
Now, balance the oxygen atoms. We have no oxygen on the left side and one oxygen in Fe2+(aq), so we need to add a coefficient of 2 in front of Fe2+(aq): 2Fe2+(aq).
Finally, verify that the charges are balanced. The charge on the left side is 1+ (from Na+) and the charge on the right side is 0 (from Na). To balance the charges, we need to add a coefficient of 2 in front of Na+: 2Na+(aq).

So, the balanced oxidation-reduction reaction is: Fe(s) + 2Na+(aq) → 2Fe2+(aq) + Na(s).

Learn more about Balancing oxidation-reduction reactions here:

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#SPJ3

How much CaCl2, in grams, is needed to make 2.0 L of a 3.5M solution?

Answers

find the number of moles: 2•3.5=7 moles

and do dimensional analysis. to convert moles of solution to moles of cacl2 and moles of cacl2 to grams of cacl2 (molar mass)

Compared to H2S, the higher boiling point of H2O is due to the1.
greater molecular size of water
2.
stronger hydrogen bonding in water
3.
higher molarity of water
4.
larger gram-formula mass of water

Answers

$\rm H_2O$ has higher boiling point than $\rm H_2S$ , as there has been stronger hydrogen bonding in $\rm H_2O$ . Thus, option 2 is correct.

The boiling point has been the temperature at which the liquid has been converted to the gaseous form. The boiling point has been based on the intemolecular attractions between the atoms.

Higher boiling point

Based on the intermolecular interactions, the compound with higher intermolecular force required more energy to break the bond and change the state, and thus have high boiling point.

The hydrogen sulfide and water has hydrogen bonding. The hydrogen bonding has been based on the electronegativity of the atom involved. The more electronegative atom, stronger will be hydrogen bonding and thereby higher boiling point.

In $\rm H_2S$ and $\rm H_2O$ , the oxygen has been more electronegative than sulfur and thus results in stronger hydrogen bonding.

Thus, $\rm H_2O$ has higher boiling point than $\rm H_2S$ , as there has been stronger hydrogen bonding in $\rm H_2O$ . Thus, option 2 is correct.

Learn more about boiling point here:

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Answer:

2, stronger hydrogen bonding

Explanation:

List four properties of a candle

Answers

1. Physical properties
. Its soft
. Its moldable
. Its white/translucent without color added
. Its insoluble in water
. its soluble in benzene and ether
. it melts around 120 degrees farenheit

2. Chemical properties
. It is a hydrocarbon with around 25 carbon atoms
. it reacts with oxygen to form water vapor and CO2
. its nonpolar (not sure if thats physical or chemical)

The concentration of O-Nitro Phenol is proportional toSelect one:
a. the concentration of b-galactosidase
b. the concentration of Luria Broth
c. the concentation of glucose
d. the concentration of lactose
e. the concentration of ONPG
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Answers

Answer:

a. The concentration of β-galactosidase

Explanation:

β-Galactosidase is an enzyme that hydrolyzes ß-D-galactosides like lactose to glucose and galactose.

It also cleaves o-nitrophenyl-β-D-galactoside (ONPG) to yield galactose and o-nitrophenol, which is yellow, and can be measured by its absorption at 420 nm.

If the concentration of ONPG is greater than that of β-galactosidase, the concentration of o-nitrophenol produced is proportional to the concentration of the enzyme.

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Which of the following is a properly written formula for a compound between copper and bromine? CuBR CUBR CuBr CUBr

You would predict that iodized salt would have no effect on any cases of ____________.

Which statement best summarizes the importance of Ernest Rutherford’s gold foil experiment?