Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password

Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Question

One atom of sulfur with an isotopic mass number of 34 has 18 neutrons. 34 (total) - 16 (protons) = 18 (neutrons).
What substance is an example of an element?
click to flip
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know

Question

Copper is an element, the others are all compounds, or a combination of several elements. In atoms, electrons surround the nucleus in
Remaining cards (21)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Science periodic tab

QuestionAnswer
One atom of sulfur with an isotopic mass number of 34 has 18 neutrons. 34 (total) - 16 (protons) = 18 (neutrons). What substance is an example of an element? copper
Copper is an element, the others are all compounds, or a combination of several elements. In atoms, electrons surround the nucleus in specific energy levels.
An atom of hydrogen consists of one _______________ surrounded by one _________________. proton, electron
At the center of every atom lies a small, dense ____________ that is positively charged nucleus
An atom of the element ____________has an average atomic mass of about 16 amu. oxygen
An equal number of protons and neutrons in an atom typically results in an atom that is radioactively stable
What is an example of an element? silver (Ag)
Elements in the same group/family of the periodic table are similar in what way? They have the same number of valence electrons.
An atom of calcium-48 and an atom of calcium-47 differ in number of neutrons
Which part of the atom cannot have its location accurately determined and is modeled by a cloud around the center of the atom? electron
Which is MOST LIKELY a solid at room temperature? potassium
When studying the halogens (group 17) on the periodic table, how does the number of the valence electrons change as the energy level is increased? The total number of valence electrons does not change, it remains 7.
What element behaves MOST like magnesium? Sr
Based on its location in the periodic table, we know that ALL BUT one property applies to the element radon. Which property does not apply to radon? synthetic
The atomic number of magnesium is 12. This means that its nucleus must contain 12 protons and no electrons
Protons are positively charged and repel other protons. Which other particle is found in the nucleus and separates protons so that the strong force can hold the nucleus together? neutrons
The element sodium has an atomic number of 11 and a mass number of 23. How many protons, neutrons, and electrons does one atom contain? 11p+, 11e-, 12no
Which statement about atomic structure is incorrect? Protons and electrons have the same mass.
The _________ contains the majority of the mass of the atom but is much ________ than the atom. nucleus, smaller
All the elements of a family in the periodic table have what feature in common? They all have similar chemical properties.
) An atom with an atomic number of 12 and a mass number of 25 can best be described by which of these?. An atom that contains 12 protons and 13 neutrons
Elaborate what knowing that carbon-14 has an atomic number of 6 tells us about the atom. Carbon-14 contains 6 electrons, 6 protons, and 8 neutrons.
Created by: kristikee
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards