SKC Year 10 Science - Chemical Patterns

Year 10 Science - Chemical Patterns Semester 1 2023

How are elements arranged in the periodic table?

Elements are arranged left to right and top to bottom in order of increasing atomic number

What are rows in the periodic table called?

Periods

What are columns in the periodic table called?

Groups

Where are metals found in the periodic table?

Metals are found to the left and middle of the periodic table

Where are non-metals found in the periodic table?

Non-metals are found to the right of the periodic table

What is the section in the middle of the periodic table known as?

Transition metals

What are the properties of metals?

Metals are lustrous, conduct heat, conduct electricity, are hard, have a high density, have a high melting point and boiling point, are malleable, and are ductile.

How are ions and cations arranged in metal?

They form a 3d lattice structure

What are the properties of non-metals?

Non-metals are dull or glassy, brittle, cannot be bent, are usually poor conductors of electricity and melt at low temperatures.

Which particles are in the nucleus of an atom?

Protons and neutrons.

Which particle is not in the nucleus?

Electrons

Which particle has a positive charge?

Protons

Which particle has a negative charge?

Electrons

Which particle has no charge?

Neutrons

What is atomic number equal to?

The number of protons and electrons in an atom.

What is the atomic mass?

The average mass of an element.

What are isotopes?

Atoms with the same number of protons but different numbers of neutrons.

How many electrons can each shell hold?

2,8,8

What do elements in the same group have in common?

They have the same number of electrons in their outer shell, causing them to react similarly.

How full are the outer shells of group 18 elements?

They have full electron shells which makes them unreactive.

What are group 18 elements known as?

Noble gases