Chemistry, 23.10.2019 20:10, kbuhvu

Sort these elements into pairs that would most likely exhibit similar chemical properties. it doesn't matter which pair goes in which box, so long as the correct elements are paired.
p, as, ar, he, ba, ca

Answers: 1

Show answers

Answers

answered: 23rwilliamson

The pairs of elements with similar chemical properties are as follows:

$\boxed{\begin{aligned} {\text{P and As}} \hfill \\ {\text{Ar and He}} \hfill \\ {\text{Ba and Ca}} \hfill \\ \end{aligned}}$

Further Explanation:

The unique features of varioussubstances that make them different from the other substances are called properties.

Classification of properties:

Physical properties:

While measuring such properties, chemical composition of substances is kept unaltered. These are used for observation and explanation of matter. Density, color, texture, polarity and solubility are some of the examples of physical properties.

Chemical properties:

These are the characteristics of substances that can be observed during its chemical reaction. Such properties are not predicted by mere observation or by physical appearances Heat of combustion, enthalpy of combustion, toxicity, flammability are some examples of chemical properties.

The chemical properties of different elements are dependent on the number of valenceelectrons present in the element. Elements with same number of valence electrons show many similarities in their chemical properties.

Atomic number of P is 15 and it has an electronic configuration of $1{s^2}2{s^2}2{p^6}3{s^2}3{p^3}$ . It has five valence electrons in it.

Atomic number of As is 33 and it has an electronic configuration of $1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^{10}}4{s^2}4{p^3}$ . It has five valence electrons in it.

Since P and As have five valence electrons in each, these belong to group 15of periodic table and have similar chemical properties.

Atomic number of Ar is 18 and it has an electronic configuration of $1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}$ . It has eight valence electrons in it. This implies its valence shell is completely filled and it belongs to noble gas family of periodic table.

Atomic number of He is 2 and it has an electronic configuration of . It has two valence electrons in it.This implies its valence shell is completely filled and it belongs to noble gas family of periodic table.

Since Ar and He have fulfilled electronic configurations, these belong to group 8 of periodic table and have similar chemical properties.

Atomic number of Ba is 56 and it has an electronic configuration of $1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^{10}}4{s^2}4{p^6}4{d^{10}}5{s^2}5{p^6}6{s^2}$ . It has two valence electrons in it.

Atomic number of Ca is 20 and it has an electronic configuration of $1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^2}$ . It has two valence electrons in it.

Since Ba and Ca have two valence electrons in each, these belong to group 2 of periodic table and have similar chemical properties.

Learn more:

Which of these is an extensive property? Why density is an important property of metal?

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Physical and chemical properties

Keywords: physical properties, chemical properties, P, As, He, Ar, 20. 33. 2, 18, 15, 33, Ba, Ca.

answered: Guest

a patient chooses to not take a beneficial medical treatment.

explanation:

answered: Guest

Is there an image with it

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 16:30, itsyaboiamo

Why should the scientific method be used to answer a question? a. it provides a way to test an idea without any bias. b. it provides a way to test a hypothesis. c. it provides a way to ensure all hypotheses are proven correct. d. it provides a way to quickly turn a hypothesis into a scientific theory.

Answers: 1

continue

Chemistry, 22.06.2019 03:00, kimberlylove387

Which statement is best described as a atom

Answers: 1

continue

Chemistry, 22.06.2019 05:00, mahhvelousg97

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?

Answers: 2

continue

Chemistry, 22.06.2019 18:30, bibiansolis

The table lists the lattice energies of some compounds. compoundlattice energy (kj/mol)lif –1,036licl –853naf –923kf –821nacl –786which statement about crystal lattice energy is best supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf. the lattice energy increases as the cations get larger, as shown by lif and licl. the lattice energy decreases as cations get smaller, as shown by nacl and naf. the lattice energy decreases as the cations get smaller, as shown by naf and kf.

Answers: 3

continue

Do you know the correct answer?

Sort these elements into pairs that would most likely exhibit similar chemical properties. it doesn'...