Compositions of Atom

What are atoms made up of?

• Protons and neutrons

• Neutrons and electrons

• Protons and electrons

• Electrons and neutrons

Tags

NGSS.MS-PS1-1

What is the charge of an electron?

• More than 1 C

• Less than 1 C

• 0 C

• 1 C

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is the proton number also known as?

• Element number

• Nucleon number

• Mass number

• Atomic number

What is the total number of neutrons and protons in the nucleus of an atom called?

• Nucleon number

• Element number

• Atomic number

• Mass number

How can you find the number of neutrons in an atom?

• Number of neutrons = proton number Z

• Number of neutrons = nucleon number A - proton number Z

• Number of neutrons = proton number Z - nucleon number A

• Number of neutrons = nucleon number A

What are atoms of the same element that have the same number of protons but different numbers of neutrons called?

• Nucleons

• Protons

• Neutrons

• Isotopes

What is the composition of the nucleus of an atom?

• Neutrons and electrons

• Electrons and neutrons

• Protons and neutrons

• Protons and electrons

What is the symbol used to represent the proton number of an element?

• A

• Z

• X

• P

What is the total positive charge equal to in a neutral atom?

• Total neutron charge

• Total proton charge

• Total negative charge

• Total electron charge

What is the mass of an atom dependent on?

• Mass of electrons

• Mass of nucleons

• Mass of protons

• Mass of neutrons