Atoms Structure

The three smaller components that make up atoms are...

• neutrons, protons, and ions

• neutrons, electrons, and protons

• protons, ions, and electons

• electrons, isotopes, and ions

Which of the following two particles are found together inside the nucleus of an atom?

• photons and ions

• neutrons and electrons

• protons and neutrons

• electrons and protons

The nucleus of the atom contains 8 protons and 9 neutrons. The atom is neutral. How many electrons does this atom have?

• 4

• 8

• 9

• 15

Tags

NGSS.MS-PS1-1

The charge of an atom is determined by the ...

• shape of the electron cloud.

• atomic mass of the element.

• radius of the outermost electron.

• number of protons and electrons.

How many protons, neutrons, and electrons does sulfur have? It's atomic number is 16 and it's atomic mass is 32.

• 16 protons, 16 neutrons, and 16 electrons

• 16 protons, 32 neutrons, and 16 electrons

• 16 protons, 16 neutrons, and 32 electrons

• 32 protons, 16 neutrons, and 16 electrons.

Tags

NGSS.MS-PS1-1

Silicon has a mass number of 28 and an atomic number of 14. How many protons does it have?

• 28

• 14

• 42

• 7

Tags

NGSS.MS-PS1-1

Which of the following lists the two subatomic particles that contribute the most to the mass of an atom?

• protons and electrons

• protons and neutrons

• neutrons and electrons

• electrons and ions

Which statement correctly describes the location and charge of the electrons in an atom?

• The electrons are inside the nucleus and have no charge.

• The electrons are outside the nucleus and have no charge.

• The electrons are outside the nucleus and have a negative charge.

• The electrons are inside the nucleus and have negative charge.

A model of a beryllium atom is shown below. What type of particles are found in the cloud surrounding the atom's nucleus?

• Positively charge particles and negatively charge particles

• negatively charged particles only

• neutral particles and positively charge particles

• positively charge particles only

Tags

NGSS.MS-PS1-1

A neutral atom has an equal number of positive and negative charges. If a neutral Flourine atom has 9 protons and 10 neutrons, how many electrons will it have?

• 10

• 9

• 8

• 7

Tags

NGSS.MS-PS1-1