Introductory Chemistry Atoms First Approach 2Nd Edition Burdge Actual Paper Solved Questions With Verified Answers

INTRODUCTORY CHEMISTRY ATOMS
FIRST APPROACH 2ND EDITION BURDGE
ACTUAL PAPER SOLVED QUESTIONS
WITH VERIFIED ANSWERS


◉ Element
Answer: A pure substance made of only one type of atom.


◉ Proton
Answer: Positively charged particle located in the nucleus.


◉ Neutron
Answer: Neutral particle located in the nucleus.


◉ Electron
Answer: Negatively charged particle located outside the nucleus.


◉ Atomic Number
Answer: Number of protons in an atom.


◉ Mass Number

,Answer: Number of protons + neutrons.


◉ Neutrons Calculation
Answer: Mass number − atomic number.


◉ Ion
Answer: An atom that has gained or lost electrons.


◉ Cation
Answer: Positively charged ion formed by losing electrons.


◉ Anion
Answer: Negatively charged ion formed by gaining electrons.


◉ Isotope
Answer: Atoms of the same element with different numbers of
neutrons.


◉ Atomic Mass Unit (amu)
Answer: Unit used to measure atomic mass.


◉ Average Atomic Mass
Answer: Weighted average of the masses of naturally occurring
isotopes.

, ◉ Atomic Symbol
Answer: Element symbol with mass number (upper left), atomic
number (lower left), and charge (upper right).


◉ Periodic Table
Answer: Arrangement of elements by increasing atomic number.


◉ Group (Family)
Answer: Vertical column of elements with similar properties.


◉ Period
Answer: Horizontal row of elements.


◉ Group 1A
Answer: Alkali metals (+1 ions).


◉ Group 2A
Answer: Alkaline earth metals (+2 ions).


◉ Group 6A (16)
Answer: Chalcogens.


◉ Group 7A (17)