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
AleksandrR [38]
3 years ago
9

Sodium has the atomic number 11

Biology
1 answer:
emmasim [6.3K]3 years ago
3 0
 <span>Sodium atom has 11 electrons 
The Na+ ion has a + charge because the atom has lost 1 electron 
Therefore number of electrons = 10</span>
You might be interested in
What's one function of the male reproductive system
Anastasy [175]
The purpose of the organs<span> of the </span>male reproductive system<span>is to perform the following </span>functions<span> To produce, maintain, and transport sperm </span><span> and protective fluid (semen) To discharge sperm within the female </span>reproductive tract<span> during sex</span>
6 0
3 years ago
Read 2 more answers
serves as a selective barrier for the cell, meaning that it allows some things to pass into or out of the cell but not others.
Aleks04 [339]
Cell Membrane is a selective barrier.
5 0
3 years ago
Nasim is driving on a snow-covered road, and her car begins to slide. The quick behavioral response and the increased heart rate
Luda [366]

Answer:

1. sympathetic

2. parasympathetic

Explanation:

The sympathetic division of the autonomic nervous system triggers the release of stress hormones from adrenal medulla under emergency conditions. There is a series of physiological responses such as increased heart and breathing rate, an increased flow of blood to skeletal muscles, dilation of pupils, etc. These events helped Nasim to fight the stress conditions.  

Once she was relieved, the parasympathetic system is activated that shut down the physiological responses generated by sympathetic division. It slows down the breathing and heart rate and triggers the digestion and absorption of nutrients to restore the energy level of cells.

3 0
3 years ago
What structure controls the release of material from the stomach to the small intestine?
Irina-Kira [14]
Pyloric sphincter i believe
3 0
3 years ago
Read 2 more answers
Describe how plants determine the name of a biome
scZoUnD [109]
Climate is the main factor is determining<span> which </span>plants<span> can grow in a certain area, which in turn defines the </span>biome<span>. Temperature and precipitation are the two most important factors that </span>determine<span> a region's climate.

</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Why aren’t your cells poisoned to death even though they create toxins?
    13·1 answer
  • 12. What are analogous characters
    13·2 answers
  • Why does the oxygen atom in a water molecule have a negative charge
    12·2 answers
  • Two molecules that can cross a lipid Byler without help from membrane proteins are O2 and CO2. What property allows this to occu
    15·1 answer
  • The egg cells of a horse contain 32 chromosomes. how many chromosomes are in the horse's liver cells?
    8·1 answer
  • How are cells making new proteins and DNA connected
    14·1 answer
  • . We celebrate the adoption of the Declaration on this day______________ of this month __________ of this year__________________
    6·1 answer
  • Proteins are among the most diverse group of macromolecules because of the -
    5·1 answer
  • When a rabbit population in the meadow cannot grow any larger, it has reached the
    8·1 answer
  • How are embryonic stem cells and adult stem cells similar and different?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!