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Chapter 4: Q. 2.87 (page 131)

Match the spheres A through D with atoms of LI, Na, K, and Rb. 4.7

Short Answer

Expert verified

The match of spheres with the atoms is Bis Rb, Cis K,AisNaandDisLi.

Step by step solution

01

Given Information

We need to find the match the spheres A through D with atoms of LI, Na, K, and Rb.

02

Explanation

Li, Na, K, and Rb all the elements are in a group 1Aand different periods. In the periodic table size of elements increases when we go down the group. So the order of size is - Li<Na<K<Rb. And we can see by observing the image, the sequence of spheres is D<A<C<B.

So, from the sequence the largest sphere is B, so this is of Rb. And following the sequence sphere Cis of K, sphere Ais of Naand sphere Dis of Li.

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Most popular questions from this chapter

Write the atomic symbol for the isotope with each of the following characteristics:

a. 15protons and 16neutrons

b. 35protons and 45neutrons

c. 50electrons and 72neutrons

d. A chlorine atom with 18neutrons

e. A mercury atom with 122neutrons

Select the element in each pair with the higher ionization energy.
a. Br or I
b. Mg or Sr
c. Si or P
d. I or Xe

How many protons and electrons are there in a neutral atom of each of the following elements?

a. argon

b. manganese

c. iodine

d. cadmium

Which statements completed with a to e will be true and which will be false?

An atom of Ncompared to an atom of Lihas a larger (greater)

a. atomic size

b. ionization energy

c. number of protons

d. metallic character

e. number of valence electrons

Identify the group or period number described by each of the following :

a. contains C,Nand O b. begins with helium

c. contains the alkali metals d. ends with neon
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