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Periodic Table Questions and Answers (Q&A)

N. Kingsley, Writer
Answered: Aug 23, 2018
The relative formula mass is calculated by adding up all the different atomic masses of the atoms present. The mass needs to be multiplied by the number of atoms present respectively. For...Read More

1 Answer

1144 views
E.Ronald
Answered: Jan 03, 2018
An element can’t be broken down any further. They are considered to be the smallest part of matter. The atomic mass of an element is the mass or weight of an element or atom. Inside of the...Read More

2 Answers

700 views
Bobby Rickets, Content Reviewer
Answered: Dec 14, 2018
The answer is B. The atomic mass of the element in period 2, group 13 of the periodic table of elements is 10.81. This group of chemical elements on the periodic table is called boron. In this...Read More

2 Answers

529 views
Jagran josh
Answered: Nov 24, 2020
They are good conductors of heat and electricity

1 Answer

460 views
John Adney
Answered: Jul 12, 2017

Cobalt is a transitional element or metal which has coloured ions and has many oxidation numbers

2 Answers

415 views
There are many elements on the periodic table. All of these elements are different in various capacities. Krypton is an element on the periodic table that many people who are not knowledgeable...Read More

2 Answers

390 views
John Smith
Answered: Nov 24, 2020
Anion, ANION, Anion

1 Answer

366 views
John Smith
Answered: Nov 24, 2020
96

(14 + 1 x 4) x 2 + 12 + 16 x 3 = 102

1 Answer

357 views
C. Perez, Writer
Answered: Jun 13, 2019
The correct answer to this question is the atomic Orbital radius. Also known as Bohr radius, the atomic orbital radius is a constant, which is physical. It is unit of length, and a0 and Bohr are...Read More

2 Answers

320 views
Mr_wong
Answered: Nov 24, 2020
Period 5; Group 0

The correct answer is Period 5; Group 0. The atom has valence shell n = 5, hence it belongs to Period 5. In the valence shell, there are 2+6 = 8 valence electrons,...Read More

1 Answer

311 views
H. callum, Content Writer
Answered: Feb 07, 2019
The correct answer to this question is C. As you move down an element group (column), the size of atoms increases. This is because each atom further down the column has more protons and neu...Read More

3 Answers

244 views
John Smith
Answered: Nov 24, 2020
Fluorine-you got tricked!The answer is a. fluorine.why??? Shouldnt the more reactive halogen displace the less reactive ones? Heres why. from question 7, you know that fluorine is the most powerful...Read More

1 Answer

233 views
John Smith
Answered: Nov 24, 2020
It has variable oxidation states.-the answer is b. it has variable oxidation states.. the oxidation states of z increases from +2 in zo to +3 in z2o3, which exmplifies its variable oxidation states...Read More

1 Answer

229 views
John Smith
Answered: Nov 24, 2020
They all have valence electrons in the f-orbitals.-the answer is d. by working out the electronic configurations of some of the elements, you will realize that they all have valence electrons in the...Read More

1 Answer

215 views
John Smith
Answered: Nov 24, 2020
Atomic radius increases down the group.-c. atomic radius increases down the group is the answer.this is because the greater the atomic radius, the further away the valance electrons, hence the...Read More

1 Answer

211 views

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