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
Degger [83]
3 years ago
5

What is the synthetic element in period 5

Chemistry
1 answer:
zmey [24]3 years ago
8 0

Answer:

Technetium

Explanation:

You might be interested in
Atomic Structure and Theory [6A.S]:Question 6
-Dominant- [34]

We need to find mass number

\\ \sf\longmapsto Mass\:Number=No\:of\:protons+No\:of\:Neutrons

\\ \sf\longmapsto Mass\:Number=19+21=40

Your answer is 40u

3 0
3 years ago
Read 2 more answers
In a scientific experiment, the factor that may change in response to the manipulated variable is called the ______ variable.
Artist 52 [7]
Dependent variable. the independent is non dependent of the variable.
4 0
3 years ago
10 points
puteri [66]

Answer: Using more fossil fuels

Explanation: Burning fossil fuels releases Green House gasses into the atmosphere, such as carbon dioxide. The carbon dioxide in the atmosphere traps in heat, which causes global temperatures to increase.

3 0
3 years ago
Explain how the temperature of a substance is related to the kinetic energy of its molecules.
natima [27]
<span>At the atomic scale, the kinetic energy of atoms and molecules is sometimes referred to as heat energy. Kinetic energy is also related to the concept of temperature. Temperature is defined as the measure of the average speed of atoms and molecules. The higher the temperature, the faster these particles of matter move.</span>
7 0
3 years ago
Read 2 more answers
Which produces the greatest number of ions when one mole dissolves in water?
Arada [10]
~Hello there!

Your question: Which produces the greatest number of ions when one mole dissolves in water?

Your answer: Na2SO4<span> can dissociate into three ions, whereas the other choices produce only two ions (or in the case of sucrose, none) when dissolved in water.

Any queries ^?

Happy Studying!
</span>
7 0
4 years ago
Other questions:
  • Aniline is more basic than cyclohexylamine because: (A) electrons on the aniline nitrogen are somewhat delocalized into the arom
    5·1 answer
  • What are the indications/signs that a chemical change has occurred?
    6·1 answer
  • Atoms of which element have two protons and two electrons?
    12·2 answers
  • Research Question: Does the type of gasoline put in a car effect how fast the car can drive?
    7·1 answer
  • E What caused the little puddle of water to appear under the syringe tip? its for sciences ​
    6·1 answer
  • Christchurch’s air temperature is cooler because the amount of energy from the sun changes.
    5·1 answer
  • 7) The density of Cl2 gas at STP, in grams per liter, is approximately:
    15·1 answer
  • the above shows immovable changer at 298 K with a pressure rod 450 kPa. if the temperature rises to 377 K, what is the new press
    5·1 answer
  • IF YOU CAN HELP ME THAT WOULD BE GREAT
    11·1 answer
  • A gas mixture being used to simulate the atmosphere of another planet at 23°c consists of 337 mg of methane, 148 mg of argon, an
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!