Atoms and Nuclei

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

an atom with proton number 6 would have how many protons

• 6

• 12

• 3

• cannot be determined

An atom's nucleon number equals the number of...

• protons plus the number of electrons

• protons plus the number of neutrons

• protons

• neutrons

Electrons are___________

• Extremely small even in comparison to protons.

• part of the nuclues.

• Super Positive, like Form 4 students!

• very large

True or False? Isotopes are atoms of the same element that differ in mass number and number of neutrons

• True
• False

A neutral atom of the element sodium has 11 protons and ____ electrons.

• 22
• 23
• 8
• 11

What is the nucleon number of this atom?

• 4

• 5

• 9

• none of the above

What is the proton number of this atom?

• 4

• 5

• 9

• none of the above

What happens during radioactive decay?

• the atom gains electrons

• neutrons accumulate in nucleus

• the atom looses electrons

• the nucleus decays

What is emitted during Beta Radiation?

• A high-energy Electron.
• Protons.
• Neutrons.
• Nuclei

Tags

NGSS.HS-PS1-8