Maris Stella High School Lower Sec Science Chapter 3.1 Quiz

How many elements have been discovered so far?

What are the symbols for elements?

What is the symbol for chlorine?

Which element's symbol is derived from its Latin name 'cupric'?

How many elements are gases at room temperature?

Which element is a liquid at room temperature?

Which type of elements are good electrical conductors and malleable?

Where are metals found in the Periodic Table in relation to the 'staircase line'?

In the Periodic Table, where are elements with similar chemical properties found?

What are the tiny particles that elements are made up of called?

What is the element used to kill bacteria in swimming pools and drinking water?

Which element is used as fuel in space shuttles?

Elements Overview

Elements are pure substances that consist of only one type of atom.
Currently, 118 elements have been discovered, each identified by a unique atomic number.

Chemical Symbols

Each element is represented by a one or two-letter chemical symbol, often derived from its name in English or other languages.
Chlorine's symbol is Cl, stemming from its name.

Latin Names and Symbols

The symbol for copper, derived from its Latin name 'cupric,' is Cu.

States of Matter

At room temperature, 11 elements exist as gases, including oxygen and nitrogen.
Only one element, mercury (Hg), is a liquid at room temperature.

Metal Properties

Metals are typically good electrical conductors and exhibit malleability, allowing them to be shaped without breaking.

Periodic Table Organization

In the Periodic Table, metals are located to the left of the 'staircase line' that distinguishes metals from non-metals.
Elements with similar chemical properties are grouped together in vertical columns known as groups or families.

Composition of Elements

Elements are composed of tiny particles called atoms, which are the fundamental building blocks of matter.

Elemental Uses

Chlorine is commonly used to kill bacteria in swimming pools and drinking water, ensuring sanitation.
Liquid hydrogen serves as a fuel in space shuttles, providing the necessary energy for thrust during launch.

Test your knowledge on exploring diversity of matter by its chemical composition, including elements, compounds, and mixtures. This quiz covers the meaning of an element, a compound, and a mixture, as well as ways to classify elements.