{ "@context": "https://schema.org", "@type": "Organization", "name": "Brainscape", "url": "https://www.brainscape.com/", "logo": "https://www.brainscape.com/pks/images/cms/public-views/shared/Brainscape-logo-c4e172b280b4616f7fda.svg", "sameAs": [ "https://www.facebook.com/Brainscape", "https://x.com/brainscape", "https://www.linkedin.com/company/brainscape", "https://www.instagram.com/brainscape/", "https://www.tiktok.com/@brainscapeu", "https://www.pinterest.com/brainscape/", "https://www.youtube.com/@BrainscapeNY" ], "contactPoint": { "@type": "ContactPoint", "telephone": "(929) 334-4005", "contactType": "customer service", "availableLanguage": ["English"] }, "founder": { "@type": "Person", "name": "Andrew Cohen" }, "description": "Brainscape’s spaced repetition system is proven to DOUBLE learning results! Find, make, and study flashcards online or in our mobile app. Serious learners only.", "address": { "@type": "PostalAddress", "streetAddress": "159 W 25th St, Ste 517", "addressLocality": "New York", "addressRegion": "NY", "postalCode": "10001", "addressCountry": "USA" } }
Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

GENERAL CHEMISTRY > LESSON 4 > Flashcards

LESSON 4 Flashcards

(9 cards)

Start Studying
1
Q

Who studied the weights of various elements and compounds. He noticed that matter is always combined in fixed ratios based on weight or volume in the case of gases.

A

John Dalton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

It is the building blocks of matter. They are the smallest particles of an element that still have the element’s properties.

A

Atoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What Subatomic Particles has a positive electric charge?

A

Protons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What Subatomic Particles has a negative electric charge?

A

Electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What Subatomic Particles has a neutral in electric charge.

A

Neutrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

It is defined as the total number of protons and neutrons in an atom.

A

Mass Number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How do you get the Mass Number?

A

Atomic Number + Number of Neutrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How do you get Neutrons

A

Mass Number - Atomic Number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

It means an atom that have the same atomic number but different mass numbers due to a change in the number of neutrons.

A

Isotopes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly

GENERAL CHEMISTRY (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions