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
Kryger [21]
3 years ago
10

Classify each element. Note that another term for main group is representative, another term for semimetal is metalloid, and the

inner transition metals are also called the lanthanide and actinide series.
Chemistry
1 answer:
NikAS [45]3 years ago
5 0

The question is incomplete, here is the complete question:

Classify each element. Note that another term for main group is representative, another term for semi-metal is metalloid, and the inner transition metals are also called the lanthanide and actinide series.

Hf, Am, In, Ta, As, Se, Rn

<u>Answer:</u>

Hafnium and tantalum are transition elements.

Americium is a inner transition element.

Indium, Selenium and Radon are main group elements.

Arsenic is a metalloid.

<u>Explanation:</u>

Main group elements are the elements which belong to s block and p block. They are also known as representative elements.

S-block elements are defined as the elements whose last electron enters s-sub shell. The general electronic configuration of these elements is ns^{1-2}

P-block elements are defined as the elements whose last electron enters p-sub shell. The general electronic configuration of these elements is np^{1-6}

Metalloids are defined as the elements which show intermediate properties between metals and non-metals. There are 7 metalloids in the periodic table. They are: Boron, Silicon, germanium, Arsenic, Antimony, Tellurium and Polonium.

Transition elements are known as d-block elements. D block elements are defined as the elements whose last electron enters d sub shell. The general electronic configuration of these elements is [(n-1)d^{1-10}ns^{0-2}]

Inner transition elements are known as (f block) elements. (F block) elements are defined as the elements whose last electron enters (f subshell). The general electronic configuration of these elements is [(n-2)f^{1-14}(n-1)d^{0-1}ns^{2}]. They are also known as lanthanide and actinide series.

For the given elements:

  • <u>Option 1:</u> Hf

Hafnium is the 72nd element of the periodic table having electronic configuration of [Xe]4f^{14}5d^26s^2

As, the last electron is entering the d subshell, it is a transition element.

  • <u>Option 2:</u> Am

Americium is the 95th element of the periodic table having electronic configuration of [Rn]5f^{7}6d^07s^2

As, the last electron is entering the (f subshell), it is a inner transition element.

  • <u>Option 3:</u> In

Indium is the 49th element of the periodic table having electronic configuration of [Kr]5s^25p^1

As, the last electron is entering the p subshell, it is a main group element.

  • <u>Option 4:</u> Ta

Tantalum is the 73rd element of the periodic table having electronic configuration of [Xe]4f^{14}5d^56s^2

As, the last electron is entering the d subshell, it is a transition element.

  • <u>Option 5:</u> As

Arsenic is the 33rd element of the periodic table having electronic configuration of [Ar]4s^24p^3

As, the last electron is entering the p subshell, it is a main group element. It shows an intermediate property of metal and non-metal. Thus, it is a metalloid.

  • <u>Option 6:</u> Se

Selenium is the 34th element of the periodic table having electronic configuration of [Ar]4s^24p^4

As, the last electron is entering the p subshell, it is a main group element.

  • <u>Option 7:</u> Rn

Radon is the 86th element of the periodic table having electronic configuration of [Xe]4f^{14}5d^{10}6s^26p^6

As, the last electron is entering the p subshell, it is a main group element.

You might be interested in
What is vaporization A: a gas becoming a liquid B: a liquid becoming a solid C: a gas becoming a solid D: a liquid becoming a ga
maxonik [38]
A liquid becoming a gas. For instance water (liquid) turns into steam (gas).
5 0
3 years ago
Read 2 more answers
The maximum number of electrons in a single d subshell is:
Iteru [2.4K]

10 electrons

Explanation:

The maximum number of electrons in a single d-subshell is 10 electrons.

The d-sub-orbital used to denote azimuthal or secondary quantum numbers.

The maximum number of electrons in the orbitals of sublevels are:

    two electrons in the s-sublevel, it has one orbital

   

   six electrons in the p-sublevel, it has three orbital

   ten electrons in the d- sublevel, it has five orbitals

   

   fourteen electrons in the f-sublevel, it has seven orbitals

The maximum number of electrons in an orbital is two.

learn more:

Atomic orbitals brainly.com/question/1832385

#learnwithBrainly

   

4 0
3 years ago
Pls help me on this it’s past due ty
mihalych1998 [28]

Answer:

sorry

Explanation:

6 0
3 years ago
List some general characteristic of producers and list and a few examples
kotykmax [81]

Answer:

pooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooop

Explanation: fart

8 0
3 years ago
Hello people ~
Nonamiya [84]

Answer:

Amphiprotic

Explanation:

  • These chemicals are too independent
  • They can either donate or accept a lone pair of protons .
  • So they can act as base and acid
4 0
2 years ago
Other questions:
  • Which graph correctly shows the effect on the freezing point caused by increasing the molality of a solution ?
    9·2 answers
  • What reactions are involved in making plastic bags and what are the molecules that make up a plastic bag like?
    7·1 answer
  • Eric's father asked an engineer to survey the field behind their house. He wanted to plant some apple and pear trees there. Acco
    12·1 answer
  • Describe the range of radii of most atoms in nanometers (nm)
    14·1 answer
  • Summer sausage is element
    12·1 answer
  • Can someone please help me finish this all?
    14·1 answer
  • Why is using dendroclimatology not always a true measure of a past climate?
    5·1 answer
  • In an isolated system, mass can neither be<br> created or destroyed.<br> ube<br> FALSE<br> TRUE
    10·1 answer
  • What is the answer please tell me
    7·1 answer
  • किसी भी व्यक्ति के पतन का क्या कारण होत है​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!