Astronomy Review #4

Posljednje ažuriranje about 7 years ago

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Astronomy Review #4

Posljednje ažuriranje about 7 years ago

Pitanje 1

If Boron is an ion with a +3 charge, then how many protons and electrons does it have?

5 protons and 5 electrons

5 protons and 6 electrons

5 protons and 2 electrons

6 protons and 3 electrons

Pitanje 2

An element with 17 protons and 18 electrons

An atom of Chlorine

A Chlorine ion with -1 charge

A Chlorine ion with a +1 charge

Pitanje 3

What is the most common isotope of Scandium

21 protons and 23 neutrons

21 protons and 21 neutrons

21 protons and 24 neutrons

20 protons and 25 neutrons

Pitanje 4

This atom has 30 protons, 35 neutrons, and 28 electrons. What is it?

Pitanje 5

Draw the electron configuration for Sulfur

Pitanje 6

different numbers of neutrons
different numbers of electrons
has a plus or minus charge
Has a different atomic mass number

Isotope
Ion

Pitanje 7

The phase of the moon above is

a waxing crescent

a waxing gibbous

a waning crescent

a waning gibbous

Pitanje 8

A sidereal day is shorter than a solar day

Tačno

Netačno

Pitanje 9

In our solar system, which of the following is a terrestrial planet?

Jupiter

Mercury

Pluto