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
JulijaS [17]
3 years ago
5

According to periodic table which elements has seven valence electrons

Chemistry
1 answer:
kondaur [170]3 years ago
7 0
Halogens have seven valence electrons and reqires one more electron to complete its octet
You might be interested in
Write a balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coeff
ahrayia [7]

Answer:

NH4Br + AgNO3 —> AgBr + NH4NO3

Explanation:

When ammonium bromide and silver(I) nitrate react, the following are obtained as shown below:

NH4Br(aq) + AgNO3(aq) —>

In solution, NH4Br(aq) and AgNO3(aq) will dissociate as follow:

NH4Br(aq) —> NH4+(aq) + Br-(aq)

AgNO3(aq) —> Ag+(aq) + NO3-(aq)

The double displacement reaction will occur as follow:

NH4+(aq) + Br-(aq) + Ag+(aq) + NO3-(aq) —> Ag+(aq) + Br-(aq) + NH4+(aq) + NO3-(aq)

NH4Br(aq) + AgNO3(aq) —> AgBr(s) + NH4NO3(aq)

6 0
4 years ago
Which of the following describes an atom?
vredina [299]

Answer:

Correct answer is option (3) .

Explanation:

Hope it helpful....

7 0
3 years ago
Which of the following is an example of heat transfer through conduction?
slava [35]
A pan on the stove getting hot, because the pan is conducting the heat from the stove.
7 0
3 years ago
Read 2 more answers
A weather balloon has a volume of 105L at 0.97 atm when the temperature is 318K. What is the volume
chubhunter [2.5K]

Answer:

89 L

Explanation:

Step 1: Given data

  • Initial pressure (P₁): 0.97 atm
  • Initial volume (V₁): 105 L
  • Initial temperature (T₁): 318 K
  • Final pressure (P₂): 1.05 atm
  • Final volume (V₂): ?
  • Final temperature (T₂): 293 K

Step 2: Calculate the final volume of the weather balloon

If we assume that the gas inside the balloon behaves as an ideal gas, we can calculate the final volume of the gas using the combined gas law.

P₁ × V₁ / T₁ = P₂ × V₂ / T₂

V₂ = P₁ × V₁ × T₂ / T₁ × P₂

V₂ = 0.97 atm × 105 L × 293 K / 318 K × 1.05 atm = 89 L

3 0
3 years ago
Number of Electrons = Number of Protons = Atomic __________________
Stella [2.4K]
Number

The atomic number is the number of protons in one atom of an element.

Hope this helps!
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is an example of a chemical change?
    15·2 answers
  • It is found that when one mole of sodium acetate trihydrate (nac2h302 3h2o, fw 136.08 g/mol) was heated to 58oc, water of hydra
    5·1 answer
  • carbon disulfide is formed by the reaction of coke (carbon) with sulfur dioxide. how many moles of cs2 will be generated if 8.0
    14·1 answer
  • How does a catalyst work
    5·2 answers
  • For the reaction below, Kp = 1.16 at 800.°C. CaCO3(s) equilibrium reaction arrow CaO(s) + CO2(g) If a 25.0-g sample of CaCO3 is
    7·1 answer
  • Based on the equation, how many grams of Br2 are required to react completely with 36.2 grams of AlCl3?
    6·1 answer
  • Chemical reactions
    6·1 answer
  • Jupiter, Saturn, Uranus, and Neptune: what is one reason why life probably does not exist on these four planets? A) They have no
    7·1 answer
  • Help me please!!!!!!!!
    9·1 answer
  • Substance X is added to the mixture shown below to reduce the __________ __________ of the aluminium oxide in bauxite. What two
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!