HLTAAP003 Chemistry

Atom is the smallest part of an element

Symbol for Sulfur

Symbol for Calcium

Compounds are pure substances that can't be broken down

symbol for Potassium

Regardless of its state matter, can be grouped into 3 major categories

the number of electrons determines the chemical properties of an element

Mixtures are joined by chemical bonds

Symbol for lead

Elements are designated by letter abbreviations referred to as chemical symbols

if there is an excess/deficiency of electrons, then the atom is _?

how many different elements are there in the Periodic Table?

Symbol for Zinc

Atom with excess of electrons leads to _?

positive charge atom is called?

Most of the atoms weight resides where?

Symbol for Nitrogen

electrons are _ charged?

Water (H20) is comprised of _ & _ ?

3.8% of the body's weight is made up of?

96% of body weight is made up of?

neutrons are _ charged?

Mixtures are comprised of any assortment of elements and compounds in any proportions

Matter is anything that occupies ?

Sodium chloride symbol

Can elements be broken down into anything simpler by chemicals means?

Ion is a charged atom

Atom contains sub-atomic particles called?

chemistry is the study

Negative charged ions are called?

Can compounds be broken down into elements by chemical means

0.2% of the body weight is made up of?

Symbol for Phosphorus

Symbol for carbon dioxide

Element symbol for Carbon

Element is defined by its atomic number

Symbol for Magnesium

the dense central core of an atom is called?

Atom exist as a stable entity and take part in chemical reactions

Examples of mixtures

A charged atom is called?

Symbol for Chlorine

there are 3 states of matter?

NaCl symbol for

Each element is made of units called _ ?

Protons are _ charged

Symbol for Iron

in a neutral atom their are _ number of protons and electrons

Compounds have properties quite different from their constitute elements

In the periodic table of elements, the elements are set out in order of _ atomic number

Symbol for Copper

Compounds are pure substances that consist of 2 or more different elements

Mixtures are pure substances

Approximately, how many elements are found in the human body?

Atom with a deficiency of electrons leads to a _ charge

Electrons orbit the nucleus at _ velocity ?

Usually elements symbols derived from the 1st or 1st & 2nd letters in _ name for the element?

Symbol for Iodine

Element symbol for Hydrogen