Atoms, Elements and the Properties of Water

Which of the following is found farthest from the center of an atom?

• nucleus
• proton
• neutron
• electron

Which of the following best describes an atom?

• protons and neutrons grouped together
• protons and electrons grouped together
• a core (center) of protons and neutrons surrounded by electrons
• a core of electrons and neutrons surrounded by protons

Tags

NGSS.MS-PS1-1

What makes an atom have a positive charge?

• more electrons than protons
• more neutrons than electrons
• more protons than electrons
• less protons than electrons

The protons in an atom’s nucleus have what kind of charge?

• positive
• negative
• neutral
• no charge

What is the basic unit of matter (smallest part of an element)?

• atoms
• elements
• protons
• compounds

Tags

NGSS.5-PS1-1

All atoms of an element have the same number of _____________.

• neutrons
• electrons
• protons
• atomic mass

Tags

NGSS.MS-PS1-1

What is Matter?

• anything that has mass

• anything that takes up space

• anything that has mass and takes up space

The mass of an atom come from the...

• electrons

• nucleus

• protons

• empty space

Where are electrons of an atom found?

• Nucleus
• Electron Cloud
• Some are in the nucleus and some in the electron cloud.
• They are moving everywhere.

Tags

NGSS.MS-PS1-1

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Tags

NGSS.MS-PS1-1