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
noname [10]
2 years ago
13

Na

Chemistry
1 answer:
tensa zangetsu [6.8K]2 years ago
5 0

Answer:

Argon is a noble gas

Hope this helps

You might be interested in
How many atoms are in 4.25 g of Ag?
stellarik [79]
The answer is 2.37 x10^22 atoms
7 0
3 years ago
Which of the following atoms is likely to transfer (and lose) an electron when it forms an ion? Please choose the correct answer
mestny [16]

Answer:

An atom containing 11 electrons

Explanation:

Metal atoms form ions by a loss of electrons whereas non-metal atoms form ions by the gain of electrons.

The group 1 elements or alkali metals form lose their one valence shell electrons when forming ions; Group 2 metals lose two while Group 3 lose three. On the other hand, non-metal atoms found in Group 5, 6, and 7 forms ions by gaining one, two and three electrons respectively.

Using the electronic configuration of atoms, their groups in the Periodic Table can be determined.

An atom containing 6 electrons has the configuration 2,4 and thus belongs to Group 4.

An atom with 2 electrons belongs to Group 2

An atom with 11 electrons has the configuration 2,8,1 and thus belongs to Group 1

An atom with 10 electrons has the configuration 2,8 and thus belongs to Group 8

An atom with 8 electrons has the configuration 2,6 and thus belongs to Group 6.

From the above, it can be seen that an atom containing 11 electrons belongs to Group 1 and will lose an electron to form an ion.

8 0
2 years ago
How many grams of water form when 1.24 l of gas h2 at stp completely reacts with o2?
kati45 [8]
Balanced reaction for formation of water is ;
2H2 + O2 —> 2H2O
Stoichiometry of H2 to H20 is 2:2
1 mol of any gas occupies a volume of 22.4 L
Therefore it 22.4 L contains 1 mole
Then 1.24 L has -1/22.4 x 1.24 = 0.055 mol
Number of water moles formed = 0.055 mol
Therefore mass of water formed = 0.055 mol x 18 g/mol = 0.99 g of water is formed
7 0
2 years ago
Which of the following pairs of elements is most likely to form an ionic compound?1.Nitrogen and sulfur? OR 2. Magnesium and Flu
Fudgin [204]

Answer:

  • <u><em>Magnesium and fluorine.</em></u>

Explanation:

<em>Ionic compounds</em> are formed by the electrostatic attraction of cations and anions.

Cations, positive ions, are formed when atoms lose electrons, and anions, negative ions, are formed when atoms gain electrons.

When two different atoms have similar atraction for electrons (electronegativity) they will not donate to nor catch electrons from each other, so cations and anions will not be formed. Instead, the atoms would prefer to share electrons forming covalent bonds to complete their outermost shell (octet rule).

Then, in order to form ionic compounds the electronegativities have to substantially different. This situation does not happen between two nonmetal elements, which nitrogen and sulfur are. Then, you can predict safely that nitrogen and sulfur will not form an ionic compound.

Ionic compounds, then require the electronegativity difference that exist between some metals and nonmetals. Being magnesium an alkaline earth metal, its electronegativity is very low. On the other hand, fluorine the first element of the group 17, has the highest electronegativity of all the elements.Thus magnesium and fluorine will have enough electronegativity difference to justify the exchange of electrons, forming ions and, consequently, ionic compounds.

5 0
3 years ago
What are valence electrons and why are they so important in chemistry?
stealth61 [152]

valance electrons that reside in the outermost shell of an atom in the highest energy level. They are important to atoms because the fewer valence electrons that the atom holds, it becomes less stable.

I take honors chemistry I hope this helps.

3 0
2 years ago
Read 2 more answers
Other questions:
  • How much lead (pb) is in 5.07 × 1012 atoms of lead? answer in units of mol?
    11·1 answer
  • Phosphine, PH₃, is a colorless, toxic gas that is used in the production of semiconductors as well as in the farming industry. W
    10·1 answer
  • Imagine that one carbon in buckminsterfullerene (C60) is replaced by a silicon atom, yielding SiC59. This molecule can then orie
    11·1 answer
  • cross contamination can it be caused by carrying either drinking glasses by the rims,a plate by its underside surface, utensils
    15·2 answers
  • For a reaction, what generally happens if the temperature is increased? a) A decrease in k occurs, which results in a faster rat
    14·1 answer
  • In an investigation that uses the scientific method, which step immediately follows asking a question?
    12·2 answers
  • Write the IUPAC name for the compound that reacts with vegetable oil to produce biodiesel
    6·1 answer
  • I need helpppp plsss
    7·1 answer
  • Which of the following best describes the atmosphere of a planet?
    13·2 answers
  • The specific heat of aluminum is 0.900 J/g*°C, the specific heat of air is 1.01 J/g*°C and the specific heat of iron is 0.450 J/
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!