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
zhuklara [117]
3 years ago
13

Give two examples (i.e. list 2 elements that are examples) of: a. an atom with a half-filled subshell b. an atom with a complete

ly filled outer shell c. an atom with its outer electrons occupying a half-filled subshell and a filled subshell
Chemistry
1 answer:
elena55 [62]3 years ago
4 0

Answer:

an atom with a half-filled subshell - hydrogen

an atom with a completely filled outer shell - argon

an atom with its outer electrons occupying a half-filled subshell and a filled subshell- copper

Explanation:

The outermost shell or the valence shell of the atom is the last shell in the atom. Chemical reactions occur at this outer most shell. The number of electrons on the outermost shell of an atom determines the group to which it belongs in the periodic table as well as its chemical properties.

Hydrogen has a half filled 1s sublevel. Only one electron is present in this sublevel.

Let us consider argon

1s2 2s2 2p6 3s2 3p6

The outermost ns and np levels are completely filled. Thus the outermost shell is completely filled.

In the last case; let us look at the electronic configuration of nitrogen;

1s2 2s2 2p3

The outermost 2p subshell is exactly half filled while the 2s sublevel is fully filled. The outermost shell of nitrogen is made up of 2s2 and 2p3 sublevels.

You might be interested in
A metal cylinder is placed in a graduated cylinder which has been filled with water to the 70.0 mL mark. The water level rises t
OLga [1]
V= New mL displaced water - original old water that was already in the grad. cylinder basically 8.0 mL
3 0
4 years ago
Read 2 more answers
Disadvantage and advantage of iodine ? <br><br><br>- umoren sŭm..​
valina [46]

THE ADVANTAGE OF IODIN

  • IODINE CAN LEAD TO GOITER AND OTHER THYROID PROBLEMS.

THE DISADVANTAGE OF IODIN

  • IODIN MAY LEAD TO THYROIDITIS AND THYROID PAPILLARY CANCER
6 0
3 years ago
Define international system of units , where does the system originate
BARSIC [14]

Answer:

The International System of Units (SI) is originated in France by frenches and originally was called a metric system of measurements. It provides definitions of various units of measurement such as weight, distance, electric current, temperature, and others which is widely accepted in the different fields of science and technology.

It is the system that is extended and derived from the french metric system of measurement is accepted in 1960 by convention 44 nation of the world to use particular unit of measurement worldwide to avoid confusion.

6 0
3 years ago
Use the ideal gas law to calculate the pressure in atmospheres of 0.21 mol of helium (He) at 16°C &amp; occupying 2.53 L. You mu
chubhunter [2.5K]

Answer:

The answer to your question is 2.32 atm

Explanation:

Data

P = ?

n = 0.214

V = 2.53 L

T = 61°C

R = 0.082 atm L/mol°K

Formula

PV = nTR

solve for P

P = nRT/V

Process

1.- Calculate the temperature in K

°K = °C + 273

°K = 61 + 273

    = 334

2.- Substitution

P = (0.214 x 0.082 x 334) / 2.53

3.- Simplification

P = 5.86/2.53

4.- Result

P = 2.32 atm

4 0
3 years ago
___energy is required to start a reaction?
aleksandr82 [10.1K]

Answer:

The energy required to start a reaction is called the ACTIVATION ENERGY.

Explanation:

Enzymes are proteins that function as biological catalysts to speed up the rate of chemical reactions in cell without being changed into a different molecule.

3 0
4 years ago
Other questions:
  • The nuclear fission process releases neutrons and Question 27 options: alpha particles electrons energy beta particles
    10·1 answer
  • Please helppppppp meee, please don't guess either
    13·1 answer
  • How hot it lava!!! <br> bill nye: volcano
    12·1 answer
  • Write the formula for the compound formed between potassium and sulfur. ks ks2 k2s k2so3 k3s2
    7·1 answer
  • A chemist fills a reaction vessel with 3.82 atm methanol (CH,OH) gas, 7.56 am oxygen (O2) gas, 5.29 atm carbon dioxide (CO2) gas
    14·1 answer
  • Which example shows complete dominance?
    13·1 answer
  • If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the struct
    11·2 answers
  • If pressure and temperature are kept constant, the reaction of 38 mL of Cl2 gas with 22 mL of CH4 gas via the equation: Cl2 (g)
    14·1 answer
  • Two burettes are set up. The first contains 0.15M NaOH and the second contains an HCl solution of unknown concentration. HCl is
    6·1 answer
  • How many grams are there in 7.9 X 10^23 molecules of AgNO3?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!