Quiz me on the atomic numbers and mass numbers rounded off for elements 1-30.
Understand the Problem
The question is asking for a quiz on the atomic numbers and mass numbers of elements from 1 to 30, specifically focusing on rounded mass numbers for each element's atomic number.
Answer
The first 30 elements with their atomic numbers and rounded mass numbers are listed on various educational websites such as Vedantu and Scribd.
The first 30 elements with their atomic numbers and average atomic masses are rounded to the nearest whole number as follows: Hydrogen (1, 1), Helium (2, 4), Lithium (3, 7), Beryllium (4, 9), Boron (5, 11), Carbon (6, 12), Nitrogen (7, 14), Oxygen (8, 16), Fluorine (9, 19), Neon (10, 20), Sodium (11, 23), Magnesium (12, 24), Aluminium (13, 27), Silicon (14, 28), Phosphorus (15, 31), Sulfur (16, 32), Chlorine (17, 35), Argon (18, 40), Potassium (19, 39), Calcium (20, 40), Scandium (21, 45), Titanium (22, 48), Vanadium (23, 51), Chromium (24, 52), Manganese (25, 55), Iron (26, 56), Cobalt (27, 59), Nickel (28, 59), Copper (29, 64), Zinc (30, 65).
Answer for screen readers
The first 30 elements with their atomic numbers and average atomic masses are rounded to the nearest whole number as follows: Hydrogen (1, 1), Helium (2, 4), Lithium (3, 7), Beryllium (4, 9), Boron (5, 11), Carbon (6, 12), Nitrogen (7, 14), Oxygen (8, 16), Fluorine (9, 19), Neon (10, 20), Sodium (11, 23), Magnesium (12, 24), Aluminium (13, 27), Silicon (14, 28), Phosphorus (15, 31), Sulfur (16, 32), Chlorine (17, 35), Argon (18, 40), Potassium (19, 39), Calcium (20, 40), Scandium (21, 45), Titanium (22, 48), Vanadium (23, 51), Chromium (24, 52), Manganese (25, 55), Iron (26, 56), Cobalt (27, 59), Nickel (28, 59), Copper (29, 64), Zinc (30, 65).
More Information
Knowing the atomic numbers and atomic masses of these elements is fundamental in chemistry, as it helps in understanding the periodic trends and properties of elements.
Sources
- Table of First 30 Elements with Atomic Masses - vedantu.com
- Atomic Masses of First 30 Elements: Hydrogen H | PDF - Scribd - scribd.com
- Atomic mass of 118 elements without decimals - BYJU'S - byjus.com
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