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
Ostrovityanka [42]
3 years ago
14

Look up sodium in the Periodic Table (Na). Then, answer the following questions

Chemistry
1 answer:
madreJ [45]3 years ago
4 0
There are 11 electrons in Sodium(Na)
The first shell can hold 2 electrons 
The second shell can hold 8 electrons 
The third shell can also hold 8 electrons but there is only 1 left

so the answer is 2, 8, 1 
You might be interested in
Predict whether each of the following molecules is polar or nonpolar? 1. XeF4 3. CCl4 5. CH3Br
denpristay [2]
The answer the following are as follows:

<span> 1. XeF4 - molecules are polar

3. CCl4 -  molecules are polar

5. CH3Br - molecules are non-polar

 I hope my answer has come to your help. God bless and have a nice day ahead!</span>
5 0
3 years ago
The melting points of alkaline earth metals are many times higher than those of the alkali metals. Explain this difference on th
7nadin3 [17]

The correct answer is higher melting point, bound by metal metal bonds.

While alkali metals only have one valence electron, alkaline earth metals have two. Metal to metal connections hold the metals together. Alkaline earth metals have a stronger metallic connection and a higher melting point because they have two valence electrons.

the characteristics that Group 2 metals excel in over Group 1 metals.

  • Initial Ionization Potential
  • Group 2 items are more difficult than group 1 elements.
  • Strong propensity to produce bivalent compounds

As a result, group 2 metals have stronger metallic bonding, which leads to increased cohesive energy and compact atom packing. This explains why group 2 metals are harder and have higher melting and boiling temperatures than group 1 metals.

To learn more about  Group 2A(2) refer the link:

brainly.com/question/9431096

#SPJ4

3 0
2 years ago
The octane number of gasoline is a measure of octane activity. The octane activity is determined by comparing the engine perform
Semmy [17]

Answer:

A. True

Explanation:

The octane number is determined by comparing the characteristics of gasoline to isooctane (2,2,4-trimethylpentane) and heptane. The correct option is option A.

Basically, the higher the octane  number, the  greater the resistance of the gasoline to knocking.

4 0
2 years ago
Why does the sun appear to move from east to west across the sky? A. Due to Earth's revolution B. Due to Earth's rotation C. Due
yarga [219]

B. Due to Earth's rotation

7 0
3 years ago
What is the balanced equation for tin dioxide + hydrogen ---&gt; tin +water
Nesterboy [21]
SnO2 + 2H2 >>> Sn + 2H2O
8 0
3 years ago
Other questions:
  • Which liquid would be the most difficult to raise or lower the temperature of
    5·1 answer
  • Which statement about schrodingers theory of the atomic model is true?
    5·1 answer
  • Arrange the following elements in order of increasing ionization energy
    15·1 answer
  • Can anyone solve #2 or #3 i cannot figure them out
    8·1 answer
  • Is snow organic or inorganic?
    10·2 answers
  • HELP ME PLS!! I FORGOT TO STUDY Which may result from an increase in friction?
    8·2 answers
  • Which body systems help to exchange oxygen and carbon dioxide?
    12·1 answer
  • PLS HELP 6TH GRADE ITS ONE QUESTION ABOUT SCIENCE
    15·2 answers
  • In what way is Model A better than Model B? Model A shows the types of elements in the compound, but Model B does not. Model A s
    6·2 answers
  • Consider the reaction: NaNO3(s) + H2SO4(l) NaHSO4(s) + HNO3(g) ΔH° = 21.2 kJ
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!