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
ycow [4]
3 years ago
9

An atom of element X has one more shell of electrons than an atom of beryllium, but it has one less valance electron than beryll

ium. Which element is X
Chemistry
1 answer:
irakobra [83]3 years ago
3 0
The atomic number of Be is 4, and so it has 2 shells. There are valence electrons in the second, which is the outermost, shell of Be. To get the element with one more shell, there would be 3 shells on the new element, and 1 less valence electron, so the new element should have 1 valence electron. Sodium is the element with 3 shells, and one valence electron which fits perfectly into the description.
You might be interested in
Driving cars lowers the pH of the oceans by _______.
Naddika [18.5K]
A) releasing CO2 that dissolves and forms acid in the oceans (i think i'm sorry if its wrong)
6 0
3 years ago
Read 2 more answers
PLEASEEE HELPPPP I WILL AWARD BRAINLIEST
vampirchik [111]
Yesssirrrrrrrrr someone answer
3 0
3 years ago
Plato answers . Which field will she use
Ira Lisetskai [31]

Answer:

A. biology

Explanation:

biology is the human body

6 0
3 years ago
Read 2 more answers
When can all the coefficients in a balanced equation represent volume ratios? when reactants and products are solids at stp when
Alexxx [7]

Answer: when reactants and products are gases at STP.


Justification:


1) STP stands for standard temperature (0°) and pressure (1 atm).


2) According to the kinetic molecular theory of the gases, and as per Avogadro's principle, equal volumes of gases, at the same temperature and pressure, have the same number of molecules.



3) Since the coefficients in a balanced chemical equation represent number of moles, when reactants and products are gases at the same temperature and pressure, the mole ratios are the same that the volume ratios, and then the coefficients of the chemical equation represent the volume ratios.


8 0
3 years ago
Read 2 more answers
A blank is 2 or more substances that are together in the same place but are not chemically combined.
hammer [34]

A mixture is a material system made up of two or more different substances, which are mixed but not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities of the individual substances are retained.

Hope this helps!

Please give brainliest!

7 0
3 years ago
Other questions:
  • According to the molecular orbital (mo) treatment of the no molecule, what are the bond order and the number of unpaired electro
    10·1 answer
  • Carbon tetrachloride, CCl4, was once used as a dry cleaning solvent, but is no longer used because it is carcinogenic. At 55.8°C
    6·1 answer
  • 150.0 grams of iron at 95.0 °C, is placed in an insulated container containing 500.0 grams of water. The temperature of the wate
    10·1 answer
  • 245 g water sample initially at at 32 oC absorbs 17 kcal of heat. What is the final temperature of water?
    11·1 answer
  • An element gave off a wavelength of 4.8x10^-7 m. What is the frequency of the element?(needs unit, and 3 sig-figs) *
    14·1 answer
  • 13. "The business of America is business.” — President Calvin Coolidge.
    15·1 answer
  • When converting from grams to the must be used as a conversion factor
    8·1 answer
  • Where do reactions in a solid
    9·1 answer
  • Why would someone need to find the relative density of an object?
    5·1 answer
  • Can the element gold kick out magnesium from a compound?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!