Atomic Composition

Which particle contributes the negative charge to the atom?

• proton
• electron
• neutron
• nucleus

Which particle does not contribute mass to the atom?

• Proton
• Neutron
• Electron
• Nucleus

Tags

NGSS.HS-PS1-7

The three main subatomic particles are electrons, protons and ____________.

• photons
• neurons
• neutrons
• quarks

Tags

NGSS.HS-PS1-8

What are the two main parts of the atom?

• nucleus and cytoplasm
• nucleus and electron cloud
• core and electron cloud
• protons and neutrons

Most of the mass in an atom is made up of _____________________?

• protons and electrons
• protons and neutrons
• neutrons and electrons
• electrons and quarks

Tags

NGSS.MS-PS1-1

What is the electrical charge of a proton?

• 1+
• 1-
• neutral
• 2-

Water is an element

• true
• false

DIFFERENT kinds of atoms chemically combined to form a substance are

• Mixture
• Element
• Compound
• Substance

Tags

NGSS.MS-PS1-1

 A homogeneous mixture has the same composition of particles throughout.

• True
• False

An example of a homogeneous mixture would be:

• salad
• perfume
• pizza
• chex mix