Chemistry Atomic Structure Test Review

What is the smallest particle of an element that retains its identity in a chemical reaction

• atom

• proton

• neutron

• electron

Tags

NGSS.MS-PS1-5

What is a proton?

• A positively charged particle found surrounding the nucleus

• A negatively charged particle found surrounding the nucleus

• A positively charged particle found in the nucleus

• A negatively charged particle found in the nucleus

Choose the particle that has no charge.

• nucleus
• neutron
• proton
• electron

This particle determines what element you have - the elements identity.

• electron
• proton
• neutron
• valence shell

Tags

NGSS.MS-PS1-1

What is the mass of a proton or a neutron?

• 1amu

• 2grams

• 13amu

• 10cm

This causes the mass of the nucleus to increase.

• adding an electron
• adding a neutron
• more orbitals
• adding negatively charged particles

Tags

NGSS.HS-PS1-8

An electron has a _____ charge.

• negative
• positive
• neutral

Tags

NGSS.HS-PS2-4

The subatomic particle that determines the identity of an element.

• neutron
• proton
• electron
• outer shell

An element with a mass number of 10 and an atomic number of 6 has how many protons?

• 5
• 8
• 6
• 10

Tags

NGSS.MS-PS1-1

24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?

• 74.92 amu
• 24.97 amu
• 75.01 amu
• 74.51 amu

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2