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
Stels [109]
3 years ago
7

What is a period in chemistry

Biology
1 answer:
Leviafan [203]3 years ago
8 0
A period<span> is the name given to a horizontal row of the periodic table. The periodic table has seven </span>periods<span>. </span>Period<span> 1 contains only two elements: hydrogen and helium.</span>
You might be interested in
Which answer below correctly orders the tempo markings from slowest to fastest?
vodka [1.7K]
You didn't give us any options to choose from. However, based on my research, this is the correct order of the tempo markings from slowest to fastest:
1. largo - very slow
2. adagio - slow
3. andante - moderately slow
4. moderato - medium
5. allegretto - moderately fast
6. allegro - fast
7. vivace - lively
8. presto - very fast
9. prestissimo - as fast as possible 
5 0
3 years ago
Read 2 more answers
To measure the amplitude of a wave you should measure...
Alexxx [7]

Answer:

<u><em>C.)</em></u>  <em>Crest to trough</em>

8 0
3 years ago
Hormones are transported from one part of the body to another ​
enyata [817]

Hormones travel throughout the body, either in the blood stream or in the fluid around cells, looking for target cells. Once hormones find a target cell, they bind with specific protein receptors inside or on the surface of the cell and specifically change the cell's activities.

Explanation:

Hormones are secreted by glands and travel to their target oragan through bloodstream.

7 0
2 years ago
When a neural impulse reaches the end of an axon, it causes the tiny oval sacs at the end of the axon to release chemicals calle
evablogger [386]

Answer:

When a neural impulse reaches the end of an axon, it causes the tiny oval sacs at the end of the axon to release chemicals called neurotransmitter.

3 0
2 years ago
How does the inner core affect all of Earth's other layers?
denis-greek [22]

Because of its rotation, the inner core of Earth is the cause of its magnetic field. This magnetic field helps protect the surface of the Earth from cosmic rays and other space-related particles. Human life could never have developed without this protection. The heat also accounts for most of the geological activity on Earth, including continent drift, and the magma associated with volcanic activity.

8 0
3 years ago
Other questions:
  • Help me with this please
    7·2 answers
  • With age, the tissues making up a heart valve can lose flexibility and become stiff and narrowed while retaining their one-way c
    14·1 answer
  • •What are some examples of real-world applications that have improved our lives as a result of research where biology, neuroscie
    14·1 answer
  • Which type of precipitation would likely be falling from cumulonimbus clouds with a ground air temperature of 14°C
    8·2 answers
  • Eye color is an example of 1. Transcriptional control 2. gene expression 3. translational control 4. gene regulation
    15·1 answer
  • When using the higher power objective lenses, you would use this part of the microscope to focus the specimen?
    5·1 answer
  • How do you know the molecule below is an unsaturated fat?
    15·1 answer
  • Trace minerals are needed in much smaller amounts than major minerals, but they are just as essential for good health. They are
    14·1 answer
  • Why does the body switch between cellular and anaerobic respiration?
    15·1 answer
  • Generally, what is the result of the negative feedback process?.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!