Science periodic tab Word Scramble

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Question	Answer
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