1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lemur [1.5K]
3 years ago
7

Which elements have electron configurations that end in ns 2 np 5 ? halogens noble gases inner transition metals transition meta

ls?

Chemistry
1 answer:
4vir4ik [10]3 years ago
7 0
HALOGENS have 7 electrons in their final shell regardless if the total number of atoms.  These 7 electrons would be shared between the 's' and 'p' orbital in the form ns² np⁵ (the same as the question).  Attached is a table that highlights the fact that halogens have the same form in terms of the valence electrons. 

You might be interested in
A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume? Solution A: 1.31% (m
Zigmanuir [339]

Answer:

Are you in flvs, if so im prettyb sure if yo look on page 3 of lesson 1.04 it tells you the answer.

Explanation:

5 0
2 years ago
Read 2 more answers
There are two types of nucleic acids, dna and rna. nearly all organisms use dna, not rna, as the central repository for genetic
Leya [2.2K]
Found the choices. Pls see attachment. 

The statements that explains this phenomenon are:
1) DNA contains adenine as one of its nitrogenous bases.
2) DNA has a double-stranded structure that ensures an accurate mechanism of duplication.

6 0
2 years ago
A sample of argon gas has a volume of 795 mL at a pres-sure of 1.20 atm and a temperature of 116 ∘C. What is the final volume of
jek_recluse [69]

<u>Answer:</u> The volume when the pressure and temperature has changed is 1.6\times 10^2mL

<u>Explanation:</u>

To calculate the volume when temperature and pressure has changed, we use the equation given by combined gas law.

The equation follows:

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1,V_1\text{ and }T_1 are the initial pressure, volume and temperature of the gas

P_2,V_2\text{ and }T_2 are the final pressure, volume and temperature of the gas

Let us assume:

P_1=1.20atm\\V_1=795mL\\T_1=116^oC=[116+273]K=389K\\P_2=0.55atm\\V_2=?mL\\T_2=75^oC=[75+273]K=348K

Putting values in above equation, we get:

\frac{1.20atm\times 795mL}{389K}=\frac{0.55atm\times V_2}{348K}\\\\V_2=\frac{1.20\times 795\times 348}{0.55\times 389}=1.6\times 10^3mL

Hence, the volume when the pressure and temperature has changed is 1.6\times 10^2mL

5 0
3 years ago
If the observed value for a density is 0.80 g/mL and the accepted value is 0.70 g/mL what is the percent error?
kvv77 [185]

Answer:

<h2>The answer is 14.29 %</h2>

Explanation:

The percentage error of a certain measurement can be found by using the formula

P(\%) =  \frac{error}{actual \:  \: number}  \times 100\% \\

From the question

actual density = 0.70 g/mL

error = 0.8 - 0.7 = 0.1

So we have

P(\%) =  \frac{0.1}{0.7}  \times 100 \\  = 14.285714...

We have the final answer as

<h3>14.29 %</h3>

Hope this helps you

4 0
3 years ago
New York State is located in which two hemispheres? How do you know this?
Helen [10]
Well, every location is located in two hemispheres. New York is in the north western hemisphere. North of the equator and west of the prime meridian
3 0
3 years ago
Other questions:
  • A 4o kg skier starts at the top of a 12 meter high slope at the bottom she is traveling 10 m/s how much energy does she lose to
    14·1 answer
  • Which answer tells the reason the earth’s climate is getting warmer?
    8·2 answers
  • The pH of normal rainwater is
    15·2 answers
  • Which property of water causes it to cling to the sides of something
    11·1 answer
  • Element A has an electronegativity of 2.20. Element B has an electronegativity of 3.44. The bond of molecule AB is then best des
    11·2 answers
  • Chlorine could combine with _ to gain the extra electron it needs to stabilize its outer shell
    13·2 answers
  • What is the best definition for the atomic number in an element
    7·1 answer
  • In your own words what is equilibrium?
    8·1 answer
  • Please help it’s a test due in five minutes! I’ll give 10 points
    6·1 answer
  • if you were conducting an experiment with pepsin which has an optimal enzymatic actigity at ph 2.3, wat buffer would be the best
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!