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
faust18 [17]
3 years ago
12

Nitrogen family - 5 valence electrons

Chemistry
1 answer:
Anna11 [10]3 years ago
6 0

Answer:

  • <u>The elements that belong to the nitrogen family are nitrogen, phosphorus, arsenic, antimonium, bismuth, and moscovium.</u>

Explanation:

<em>Families</em> are group of elements that belong to the same column in the periodic table.

Some families have a well known name. For instance, alkali metals is the family of the elements that belong to the first column: Li, Na, K, Rb, Cs, and Fr (H is an exception, in spite it is in the first column it does not belong to the alkali metals family because it is a nonmetal). Other well known families are alkaline earth metals (column 2), halogens (column 3), and noble gases (column 18).

All the members of a family have the same number of valence electrons, i.e. electrons in the outermost shell.

  • <u>Nitrogen</u>, N, is in the column 15; it has 5 valence electrons, because its outer most shell has configurarion ns²np³ (n is 2 because nitrogen is in the second period).

The other members fo this family with the electron configuration of the outermost shell are:

  • <u>Phosphorus</u>, P, 3s² 3p³ (third period)

  • <u>Arsenic,</u> As, 4s² 4p³ (fourth period)

  • <u>Antimonium</u>, Sb, 5s² 5p³ (fith period)

  • <u>Bismuth</u>, Bi, 6s² 6p³ (sixth period)

  • <u>Moscovium</u>, Mc, 7s² 7p³ (seventh period)

You might be interested in
The density of an object with a volume of 3.0 mL and a mass of 15.0 g is
Sav [38]
The density equals to the mass divided by volume. The equation of calculation is density= 15/3=5.0 g/ml. Notice the unit and the significant figures.
6 0
3 years ago
3. How many moles of H20 are in 15.2 grams of pure ice?
inna [77]

Answer:

18.01528 grams.

Explanation:

7 0
3 years ago
A flask is filled with 50.0 ml of 0.15 M HCl acid. Exactly 0.054 grams of CaCo3 are placed in the acid,
ira [324]

Answer:

See explanation

Explanation:

2HCl(aq) + CaCO3(aq) ------->CaCl2(aq) + CO2(g) + H2O(l)

Number of moles of acid present = 50/1000 * 0.15 = 0.0075 moles

Number of moles of calcium carbonate = 0.054g/100 g/mol = 0.00054 moles

2 moles of HCl reacts with 1 mole of calcium carbonate

x moles of HCl reacts with 0.00054 moles of calcium carbonate

x = 2 *  0.00054/1

x = 0.00108 moles of HCl

Amount of acid left = 0.0075 moles - 0.0075 moles = 0.00642 moles

Reaction of HCl and NaOH

HCl(aq) + NaOH(aq) ------> NaCl(aq) + H2O(l)

Since the reaction is in the mole ratio of 1:1

0.00642 moles of HCl is neutralized by 0.00642 moles of NaOH

8 0
3 years ago
Why do elements in the same family generally have a similar properties ?
sattari [20]

Answer:The elements have the same number of electrons in the outer ring so they react with the same substances

5 0
3 years ago
Which of the following pairs of compounds have the same empirical formula?
andreyandreev [35.5K]

Answer:

option a and c both are correct

Explanation:

please mark me as brainliest

6 0
2 years ago
Other questions:
  • HELP me, this question not even really hard actually...
    12·1 answer
  • How many electrons can occupy the s orbitals at each energy level?
    9·1 answer
  • What is urine made of?
    13·1 answer
  • A solution containing sodium fluoride is mixed with one containing calcium nitrate to form a solution that is 0.015M in NaF and
    7·1 answer
  • A frictionless piston-cylinder device contains a saturated liquid and water vapor mixture at 110 ℃. During a constant pressure p
    15·1 answer
  • A "carat" is a unit of mass defined as exactly ⅕ of a gram. There are exactly 5 carats in a gram. How many carats would a 1.0 mL
    8·1 answer
  • How many formula units are in 3.3 moles of NaCl?
    10·1 answer
  • How many moles of aluminum are in 4.35 moles of al2si4o10(OH)2
    7·1 answer
  • The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction
    5·1 answer
  • An experiment is carried out where 13.9 g of solid NaOH is dissolved in 250.0 g of water in a coffee-cup calorimeter. Dissolutio
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!