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
pentagon [3]
3 years ago
8

The elements from this section of the periodic table all belong to the same

Chemistry
2 answers:
malfutka [58]3 years ago
8 0

Answer:

period

Explanation:

krok68 [10]3 years ago
7 0

Answer:

Option C = same period.

Explanation:

All these elements belongs to second period of periodic table. This period consist of eight elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon.

Electronic configuration of lithium:

Li₃ = [He] 2s¹

Electronic configuration of beryllium:

Be₄ = [He] 2s²

Electronic configuration of boron:

B₅ = [He] 2s² 2p¹

Electronic configuration of carbon:

C₆ = [He] 2s² 2p²

Electronic configuration of nitrogen:

N₇ = [He] 2s² 2p³

Electronic configuration of oxygen:

O₈ = [He] 2s² 2p⁴

Electronic configuration of fluorine:

F₉ = [He] 2s² 2p⁵

Electronic configuration of neon:

Ne₁₀ = [He] 2s² 2p⁶

All these elements present in same period having same electronic shell.

However their families, valance electrons and group are different. Boron have three valance electrons and belongs to group 3A. Carbon belongs to group 4A and have 4 valance electrons. Nitrogen belongs to group 5A and have five valance electrons. Oxygen belongs to group 6A and have six valance electrons. Fluorine belongs to group 7A and have seven valance electrons.

You might be interested in
IF SOMEONE HELP ME WITH THIS, I'll GIVE 100 POINTS! Create an organization structure for fictional elements. There are many ways
Vlad1618 [11]
Bruh you didn’t give 100 points tho
6 0
3 years ago
Why nucleus of an atom is negatively charged?​
Igoryamba

Answer:

An atom consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. The positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. ... The nucleus of an atom contains protons and neutrons

Explanation:

5 0
3 years ago
How many moles of KMnO, are in 66.38 g of KMnO?
schepotkina [342]

Answer:.603moles

Explanation:do given over 1 so 66.38 over 1 then multiply by 1 over 110.035344(the atomic mass of KMnO) and then you get the answear

5 0
3 years ago
In a given chemical reaction the energy of the products is greater than the energy of the reactance which statement is true for
IceJOKER [234]

Answer:

Energy is released in this reaction possibly in the form of heat thus it is an exergonic and or exothermic reaction.

6 0
3 years ago
1. If you have 25% radioactive parent atoms in a mineral crystal, and 75% daughter atoms, how many half-lives have passed?
Andreyy89
Too freaking many... or maybe not many at all

5 0
3 years ago
Other questions:
  • Rfggxchhgfdxvnjgdzvbhdazcbhds
    15·1 answer
  • N2+3h2=2nh3 how many grams of hydrogen must react if the reaction producesd 27 grams of nh3
    11·1 answer
  • Who arranged the periodic table according to atomic mass
    5·1 answer
  • How much Sr(OH)2 • 8 H2O (M = 265.76) is needed to
    12·1 answer
  • A 25.0 mL solution of a monoprotic weak acid is titrated with 0.10 M NaOH. The equivalence point is reached after 38.52 mL of Na
    8·1 answer
  • A certain shade of blue has a frequency of 7.05 × 1014 hz. What is the energy of exactly one photon of this light?
    7·1 answer
  • A strawberry nutritional drink used for a liquid diet is flavored with methyl butanoate. Draw the structure of methyl butanoate.
    11·1 answer
  • Chemistry help please!! ​
    10·1 answer
  • How do you identify an acid from its chemical formula​
    6·1 answer
  • A beaker contains a solution. A single solute crystal is added to the solution. Immediately, crystals form in the solution. Whic
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!