2024 | Natural Sciences

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Questions and Answers

What is the atomic number of Carbon?

6 (correct)

Oxygen is in the same group as Carbon on the periodic table.

True

What is the name of an element in the same period as Carbon?

Nitrogen

The symbol for Hydrogen is ______.

H Signup and view all the answers

Match the following elements with their symbols:

Helium = He Lithium = Li Beryllium = Be Carbon = C Signup and view all the answers

Which category of elements occupies the far right-hand side of the Periodic Table?

Non-metals Signup and view all the answers

Hydrogen is classified as a metal in the Periodic Table.

False Signup and view all the answers

What is the primary purpose of the zigzag line in the Periodic Table?

To separate metals from non-metals Signup and view all the answers

Most of the elements in the Periodic Table are classified as ______.

metals Signup and view all the answers

Match the following categories of elements with their characteristics:

Metals = Found in the middle and on the left-hand side of the Periodic Table Non-metals = Located on the far right-hand side Semimetals = Found between metals and non-metals Zigzag Line = Separates metals from non-metals Signup and view all the answers

What is one consequence of poor waste management related to public health?

Increased presence of vermin and spread of diseases Signup and view all the answers

Shortage of landfill sites is a positive consequence of poor waste management.

False Signup and view all the answers

Name a career that involves investigating chemicals collected from crime scenes.

Forensic chemist Signup and view all the answers

Improperly disposed waste can lead to __________ in sewage and water drainage systems.

blockages Signup and view all the answers

What is one of the negative impacts of chemical waste on the environment?

Pollution of water and soil Signup and view all the answers

Match the following careers to their corresponding responsibilities:

Forensic chemist = Investigate chemical evidence from crime scenes Metallurgical engineer = Process ores to produce metals Waste management professional = Manage waste disposal and recycling systems Environmental scientist = Study the effects of pollution on ecosystem health Signup and view all the answers

Everyone should be involved in recycling to prevent poor waste management.

True Signup and view all the answers

The accumulation of waste due to poor management leads to increased __________ needed for landfills.

land Signup and view all the answers

What term describes the vertical columns in the Periodic Table?

Groups Signup and view all the answers

An element can be broken down into simpler substances.

False Signup and view all the answers

Who was the first chemist to arrange the elements in the Periodic Table?

Dmitri Mendeleev Signup and view all the answers

Each element in the Periodic Table has a unique set of ______.

properties Signup and view all the answers

Match the following terms with their definitions:

Element = A pure substance that cannot be broken down Matter = Everything around us Period = Horizontal row in the Periodic Table Group = Vertical column in the Periodic Table Signup and view all the answers

What does the chemical symbol for an element typically begin with?

Capital letter Signup and view all the answers

The Periodic Table organizes elements solely based on their atomic numbers.

False Signup and view all the answers

What did Mendeleev anticipate regarding undiscovered elements?

He left blank spaces for them in the table. Signup and view all the answers

Study Notes

Activity 2: Investigate the Periodic Table

1. Look at the symbol in Figure 4 and use the Periodic Table to answer the following questions.
- a) What is the name of this element?
- b) What is its atomic number?
- c) Write down the name of an element in the same group as this element.
- d) Write down the name of an element in the same period as this element.
2. Draw a table, like the one below, of the names and symbols for the first 20 elements. The first three have been done for you as an example.

Element name	Symbol
Hydrogen	H
Helium	He
Lithium	Li

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Description

This quiz focuses on exploring the Periodic Table of elements. Participants will identify elements based on their symbols, atomic numbers, and their relationships in groups and periods. Additionally, you'll create a table for the first 20 elements to reinforce your understanding.