The Periodic Table

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Questions and Answers

Which group in the periodic table contains elements with 6 electrons in their outermost shell?

Group IV
Group III
Group VI (correct)
Group V

What is the defining characteristic of Group I elements in the periodic table?

Four electrons in their outer shell
One electron in their outer shell (correct)
Two electrons in their outer shell
Three electrons in their outer shell

Which group in the periodic table is known as the nitrogen family?

Group III
Group II
Group V (correct)
Group IV

Explain the theoretical model for the atom's electron arrangement proposed by Bohr and Rutherford.

Bohr and Rutherford proposed a theoretical model for the atom in which electrons are arranged in layers or shells around the nucleus. Each shell can hold a certain number of electrons, with the first shell (K shell) holding a maximum of two electrons, the second shell (L shell) holding a maximum of eight electrons, and the third shell (M shell) holding up to eighteen electrons, but being stable at eight. Signup and view all the answers

What is the characteristic of halogens that makes them reactive?

Their atoms have one empty space in their outer shell (A) Signup and view all the answers

Which group in the periodic table is known as the noble gases?

Group VIII (Group 0) (C) Signup and view all the answers

What is the mass of an atom dependent on?

The mass of an atom depends on the number of protons and neutrons it has, which can be calculated using the mass number formula: mass number = number of protons + number of neutrons. Signup and view all the answers

Explain the maximum number of electrons that can be held in the first, second, and third electron shells.

The first shell (K shell) can hold a maximum of two electrons, the second shell (L shell) can hold a maximum of eight electrons, and the third shell (M shell) can hold up to eighteen electrons, but is stable at eight. Signup and view all the answers

How do the electrons build up within the electron shells?

The electrons build up from the first shell, filling each one until all the electrons are in place, resulting in all the electrons being as close to the nucleus as they can be. Signup and view all the answers