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
algol13
3 years ago
7

Light elements with an atomic number less than 20 generally have a neutron to proton ratio equal to

Chemistry
1 answer:
Natalija [7]3 years ago
6 0
Atomic elements consist of a nucleus that contains protons and neutrons. Protons carry a positive charge whilst neutrons are electrically neutral. In light elements with an atomic number less than 20, the neutron to proton ratio is generally equal to 1:1. This changes for heavier elements since the Coulomb interaction between many protons gets stronger and demands more neutrons for the nucleus to remain stable. 
You might be interested in
1) Calculate the molar mass of Tryptophan.
mestny [16]

Answer:

204.23 g/mol

Explanation:

6 0
3 years ago
1. What two types of cells contain chloroplasts?
Vikentia [17]

Answer:

plant cells and eukroyatic algae

5 0
3 years ago
Why is an electron ejected when green light hits the metal?
Roman55 [17]

Explanation:

If a large photon strikes the surface, that has enough strength to take out an electrode, which will then travel to the positive side since it is negative. Current is flowing at this stage. Since the reduced photons will be unable to distinguish between atoms, no power can pass.

6 0
3 years ago
How many mol of sodium hydroxide are required to make 1.35 L of 2.50 mL solution?
Nata [24]
3 and a half mL because
6 0
3 years ago
A solution contains 0.140 mol KCl in 2.100 L water. What is the concentration of KCl in g/L?
viva [34]
<h3><u>Answer</u>;</h3>

≈ 4.95 g/L

<h3><u>Explanation;</u></h3>

The molar mass of KCl = 74.5 g/mole

Therefore; 0.140 moles will be equivalent to ;

 = 0.140 moles × 74.5 g/mole

 = 10.43 g

Concentration in g/L

   = mass in g/volume in L

   = 10.43/2.1

   =  4.9667

<h3>   <u> ≈ 4.95 g/L</u></h3>
4 0
3 years ago
Other questions:
  • Check all that apply. view available hint(s) water is known as a polar molecule because check all that apply. the hydrogen atom
    5·1 answer
  • If eight atoms of iron react completely with six molecules of oxygen, how many units of iron oxide will be formed?
    7·1 answer
  • How many molecules of water are released during the polymerization of a 20 monomer-long cellulose molecule?
    11·1 answer
  • Both pyrrole and pyridine are aromatic compounds, and undergo electrophilic aromatic substitution (EAS). Using a resonance argum
    11·1 answer
  • Which statement about a reaction is not correct?
    13·1 answer
  • Distinguish between metals, ionic compounds, and covalent compounds using information about the physical properties of a compoun
    5·1 answer
  • When heated, allyl aryl ethers and allyl vinyl ethers undergo a reaction called a Claisen rearrangement, a concerted reorganizat
    15·1 answer
  • How is the preodictable arranged by atomic mass, coloms , and rows
    9·2 answers
  • PLEASE ANSWER ASAP!!!!!!! 50 points if the answer is correct!
    9·1 answer
  • A sample of 4.0 L of nitrogen, at 1.2 atmospheres, is transferred to a 12 L container.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!