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
RideAnS [48]
2 years ago
9

What is true about elements that are in the same column group or family

Chemistry
1 answer:
shusha [124]2 years ago
3 0

The given question is incomplete. The complete question is:

Which is true of Elements on a periodic table in the same group (family)?

A; Elements in the same family have similar chemical properties because they have the same number of electron shells.

B; Elements in the same family have similar chemical properties because they have the same number of valence electrons.

C; Elements in the same family have few similar properties as they have different numbers of electron shells.

D; Elements in the same family are always the same type of Elements and have the same number of protons.

Answer: B; Elements in the same family have similar chemical properties because they have the same number of valence electrons.

Explanation:

Elements are distributed in groups and periods in a periodic table.

Elements that belong to same groups will show similar chemical properties because they have same number of valence electrons. The chemical reactivity of elements is governed by the valence electrons present in the element.

Example: Flourine, chlorine and bromine are elements which belong to Group 17. They have 9, 17 and 35 electrons respectively and contain 7 valence electrons each and need one electron to complete their octet.

You might be interested in
Identify the correct net ionic equation for the reaction that occurs when solutions of Pb(NO3)2 and NH4Cl are mixed.
Pie

Answer:

Pb2+(aq) + 2Cl–(aq) ----> PbCl2(s)

Explanation:

The net ionic equation shows the main reaction that takes place in a system. Hence, a net ionic equation focusses only on those species that actually participate in the reaction.

For the reaction between Pb(NO3)2 and NH4Cl , the net ionic equation is;

Pb^+(aq) + 2Cl^-(aq) ---> PbCl2(s)

7 0
3 years ago
Hydroxide is an example of _______ and it's formula is OH-.
Ksju [112]

Answer:

polyatomic ion

Explanation:

It is polyatomic ion have a great day marry christmass

6 0
2 years ago
A rolling ball will eventually stop rolling. Which describes one reason why this happens
kogti [31]
Friction .......................................................................................
5 0
3 years ago
How many atoms are present in 34.69 moles of Mg
shusha [124]
<span>Avogadro's number. 

1 mole of any substance, molecule or element is equal to a certain amount of atom. 

6.022 x 10^23 is the Avogradro's constant. 

Magnesium Oxide is a compound. therefore if you have 30.3 g of it (1 mol), it will have the same number of atoms. 

34.69 moles of MgO has 208.9 x 10^23 number of atoms. 

2.089 x 10^25 is also a correct answer.</span><span>
</span>
7 0
3 years ago
Aluminum reacts with sulfur gas to produce aluminum sulfide
weqwewe [10]

Answer:

What is the question? It looks like a fact.

Explanation:

4 0
3 years ago
Other questions:
  • A hardware salesman measures the mass of a box containing
    8·2 answers
  • What kind of bond is present in NaBr?
    9·2 answers
  • If the complete conversion of 1.383g of XI2 results in the formation of 0.564g of XCl2,what is the atomic mass of the element X
    9·1 answer
  • In the example in the lesson, 0.10 mole of sodium chloride or magnesium chloride or aluminum chloride was added to one liter of
    14·2 answers
  • Name the compound
    15·1 answer
  • Patients give doctors information inside the protection of confidentiality agreements. Should the doctor refer the patient to a
    7·1 answer
  • The internal energy of a system __________. Question 66 options: is the sum of the kinetic energy of all of its components is th
    7·1 answer
  • I have no idea lol ...... :D
    10·2 answers
  • These are the photos for part A
    12·1 answer
  • Which part of an atom has a negative electric charge?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!