Protons Neutrons Electrons

Which description about the proton is accurate?

• Positively charged particle with a mass less than 0 amu

• A neutrally charged particle with a mass less than 0 amu

• Positively charged particle with a mass of 1 amu

• A neutrally charge particle with a mass of 1 amu

Tags

NGSS.MS-PS1-1

How many protons are in Beryllium?

• 4

• 9

• 5

• 2

Tags

NGSS.MS-PS1-1

Carbon has how many protons?

• 12

• 6

• 7

• 4

Tags

NGSS.MS-PS1-1

Which of the following best describes a proton? Select two correct answers.

• It has a negative charge and about the same mass as an electron.

• It has a negative charge and about the same mass as a neutron.

• It has a positive charge and about the same mass as a neutron.

• It has a positive charge and is located outside the nucleus.

• It has a positive charge and is located inside the nucleus.

Explain why the number of electrons in a neutral atom is equal to the number of protons.

• Because electrons and protons are the same particles.

• Because the charges of electrons and protons cancel each other out.

• Because neutrons balance the number of electrons.

• Because the atomic number is always even.

Tags

DOK Level 3: Strategic Thinking

How many protons, neutrons and electrons are in Sodium (Na) if it has an atomic number of 11 and atomic mass of 22? It would have ​ (a)   protons, ​ (b)   neutrons and ​ (c)   electrons.

• 11

• 22

• 33

Tags

NGSS.MS-PS1-1

Match the following

• 1/1836 AMU, Negative Charge

• Neutron

• 1 AMU, Positive charge

• Electron

• 1 AMU, No Charge

• Proton

Tags

NGSS.MS-PS1-1

How many protons, neutrons, and electrons are present in an atom of hafnium, with a mass number of 178? (a)  

• 72 p, 106 n, 72 e

• 72 p, 178 n, 106 e

• 178 p, 250 n, 72 e

• 106 p, 72 n, 106 e

Tags

NGSS.MS-PS1-1

Which of the following is a property of protons?

• They are negatively charged

• They have a mass of approximately 1 atomic mass unit

• They are found outside the nucleus

• They have no charge

How many protons, neutrons, and electrons does ¹²⁶Te have?

• 126 n, 52 p, 52 e

• 74 n, 52 p, 52 e

• 52 n, 74 p, and 74 e

• 52 n, 126 p and 126 e