Physics, 01.10.2019 13:30, phillipmccormick

How do elements change as you go down a group in the periodic table?
a. the average atomic mass decreases.
b. the atomic number increases.
c. the atoms become more metallic.
d. the number of valence electrons increases.

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 08:30, kmwise19

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.

Answers: 1

continue

Physics, 23.06.2019 00:00, isabella4141

Which is an advantage of subdividing science into different areas?

Answers: 3

continue

Physics, 23.06.2019 00:20, tacowilliam20

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g

Answers: 2

continue

Physics, 23.06.2019 00:20, bighoneypadrick

An object with a mass of 1.5 kg changes its velocity from + 15 m/s to +22 m/s during a time interval of 3.5 seconds. what impulse was delivered to the objects?

Answers: 2

continue

Do you know the correct answer?

How do elements change as you go down a group in the periodic table?
a. the average atomic ma...