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
crimeas [40]
2 years ago
6

Describe the properties of alkali metals. Based on their electronic arrangement, explain whether they exist alone in nature.

Chemistry
1 answer:
bearhunter [10]2 years ago
7 0

Answer:

- They are highly reactive metals

- They have low electro negativity

- They have low ionization energy

- They don't exist alone in nature

- They have low densities

Explanation:

Alkali metals are the elements in group 1 of the periodic table. They include Sodium, Lithium, Potassium e.t.c.

Due to the fact they have one atom in their outermost shell, they are very unstable because they easily react with other elements and are therefore don't exist alone in nature but combined with other elements for this same reason.

Since alkali metals don't easily attract other elements due to it's lone pair in the outer most shell, it can be said to have low electro negativity.

Also, they don't need energy to discharge their electrons since they are highly reactive due to their lone pair in the outermost shell and so we say they have low ionization energy.

Due to this reason, they also have low densities.

You might be interested in
Some activities that are generally considered to be work are not called work by scientists. Explain why.​
Flura [38]

Answer:

Certain things we think of as hard work, such as writing an exam or carrying a heavy load on level ground, are not work as defined by a scientist. The scientific definition of work reveals its relationship to energy—whenever work is done, energy is transferred.

For work, in the scientific sense, to be done, a force must be exerted and there must be motion or displacement in the direction of the force.

5 0
2 years ago
What is the formula of lead nitrate​
monitta

Answer: Pb(NO3)2

Explanation:

5 0
3 years ago
Read 2 more answers
Billy the friendly Robot uses 50 N of force to lift a box 2 meters in the air. How much work did Billy perform?
nexus9112 [7]

Answer:

Work done, W = 100 J

Explanation:

We have, Billy the friendly Robot uses 50 N of force to lift a box 2 meters in the air.

It is required to find the work done by Billy.

Work done by an object is given in terms of force and displacement. The formula used to find the work done is given by :

W=Fd\\\\W=50\ N\times 2\ m\\\\W=100\ J

So, the work performed by Billy is 100 J.

4 0
3 years ago
How is nucleic acids dna and rna are related to the process by which two cells com from on cell
Amiraneli [1.4K]

Answer:

Explanation:dndndbsnsjsjjsjsjssjjsjssjzjzjzjzjjxjxjx

6 0
3 years ago
Which of these statements is not true about chemical reaction rates
grin007 [14]

Answer: The statement (B) is not true about chemical reactions.

Explanation:

A chemical reaction rate is affected by the several factors few of which are temperature, concentration of reactants, surface area etc.

In a chemical reaction, if temperature is increased then the rate of reaction will increase because it will increase the average kinetic energy of the reactant molecules. Thus, large number of molecules will have minimum energy required for an effective collision.

It is known that increasing the amount of reactants will increase the rate of reaction.

Therefore, rate of reaction will change if concentration or temperature is changed.

Hence, the statement (B) is not true about chemical reactions.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the sea of instability
    12·2 answers
  • Consider the reaction below.
    6·1 answer
  • A particular substance has a measured solubility in water of 3.6 g/1.0 L. How much of the substance can be dissolved in 650 L of
    11·1 answer
  • How is a chemical reaction different from a physical reaction
    8·1 answer
  • The fermentation of glucose (C6H12O6) produces ethyl alcohol (C2H5OH) and CO2:
    7·1 answer
  • Calculate the mass of NaCl required to prepare 360.0 mL of a 0.35 M solution.
    8·1 answer
  • What can the flow of electrons be easily compared to?
    5·1 answer
  • What’s the empirical formula of a molecule containing 65.5% carbon, 5.5% hydrogen, and 29.0% oxygen?
    11·1 answer
  • If an acid is added to different samples of buffered water, the sample with the
    12·2 answers
  • 5. Elements are different because they contain different numbers of protons.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!