Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
. In a modern periodic table, elements are arranged in order of?
|
abc oder
|
|
|
How many periods does the modern periodic table have?
|
103 periodics tables
|
|
|
3. An element that is shiny and conducts electricity is likely to be a?
|
metal
|
|
|
. Elements that have the same number of valence electrons are:
|
a electron that is on the outer shell
|
|
|
The most reactive metals, which are soft and silvery-white are the:
|
alkai metals
|
|
|
What is the octet rule?
|
win addums lose or gang all the electrons
|
|
|
What do all nonmetals have in common?
|
they dont cunduct elctersidy
|
|
|
. Which class on the periodic table shares properties with both metals and nonmetals?
|
can idinuffy metals
|
|
|
9. Using your periodic table and your knowledge of the relationship between group and number of valence electrons, how many valence electrons would Magnesium have?
|
8
|
|
|
10. Which of the following elements is a metalloid?
a. copper b. indium c. silicon d. carbon |
b
|
|
|
11. Using your periodic table and your knowledge of the relationship between period and number of electron energy levels, how many energy levels does strontium have?
|
5
|
|
|
12. Use your periodic table to look up the atomic number and atomic mass of Boron. How many protons does Boron have?
|
5
|
