Chemistry

Front

The group number tells us how many _________ there are in an element.

Back

valence electrons

Front

The ________________ tells you how many energy levels are used in an element.

Back

period number

Front

Tellurium: Atomic mass = 127.60, Atomic number = 52. How many neutrons?

Back

76

Front

The inner energy level can only hold ______ electrons.

Back

2

Front

The largest amount of electrons the 3rd energy level can hold is?

Back

18

Front

The characteristics or properties of metals include

Back

all of the above

Front

True or False - An energy level has to be full before moving on to the next energy level?

Back

true

Front

How many valence electrons do elements in group 17 have in their outer energy level?

Back

7

Front

Is the Bohr Model for the element Selenium (Se) correct?

Back

yes

Front

Is this a correct representation of the Bohr Model for Sodium (Na)?

Back

no