National 5 Chemistry Unit 1 - Atom and periodic Table

Which two subatomic particles are found in the NUCLEUS of at atom?

• protons & neutrons

• protons & electrons
• neutrons & electrons
• electrons & protons

The subatomic particle with a neutral charge is:

• protons
• electrons
• neutrons
• cloud

If an element has 6 protons, 7 neutrons, and 6 electrons, what type of charge does the element have?

• positive
• negative
• neutral
• imaginary

Tags

NGSS.MS-PS1-1

What gives an atom mass?

• Protons & electrons in the nucleus
• electrons in the cloud
• protons & neutrons in the nucleus
• Protons & electrons in the cloud

If an atom has 24 protons and 24 electrons, what is the atomic number of this element?

• 24
• 48
• 0
• 42

Tags

NGSS.MS-PS1-1

The number of protons is equal to 

• the atomic number
• the number of neutrons
• the energy levels
• the periodic table groups

Tags

NGSS.MS-PS1-1

Elements in the same ________ are more chemically similar.

• group
• period
• club
• table

Rows on the periodic table are called _____ while columns are called _____.

• groups, families
• groups, periods
• periods, groups
• families, groups

What does the H stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Tags

NGSS.MS-PS1-1

Most elements on the periodic table are classified as ____________.

• Gases

• Metalloids

• Metals

• Nonmetals

Tags

NGSS.HS-PS1-1